Search a number
-
+
2401540020 = 22325111771347
BaseRepresentation
bin1000111100100100…
…1001011110110100
320012100220212120200
42033021021132310
514404243240040
61034145200500
7113340516255
oct21711113664
96170825520
102401540020
111022674620
12570330130
132c37078c9
1418ad40b2c
15e0c7c630
hex8f2497b4

2401540020 has 144 divisors (see below), whose sum is σ = 8414497728. Its totient is φ = 547937280.

The previous prime is 2401540013. The next prime is 2401540061. The reversal of 2401540020 is 200451042.

2401540020 is a `hidden beast` number, since 240 + 1 + 5 + 400 + 20 = 666.

2401540020 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2401539975 and 2401540002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2014 + ... + 69333.

It is an arithmetic number, because the mean of its divisors is an integer number (58434012).

Almost surely, 22401540020 is an apocalyptic number.

2401540020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2401540020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4207248864).

2401540020 is an abundant number, since it is smaller than the sum of its proper divisors (6012957708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2401540020 is a wasteful number, since it uses less digits than its factorization.

2401540020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71390 (or 71385 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2401540020 is about 49005.5100983553. The cubic root of 2401540020 is about 1339.1522111924.

Adding to 2401540020 its reverse (200451042), we get a palindrome (2601991062).

The spelling of 2401540020 in words is "two billion, four hundred one million, five hundred forty thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 17 18 20 22 30 33 34 36 44 45 51 55 60 66 68 85 90 99 102 110 132 153 165 170 180 187 198 204 220 255 306 330 340 374 396 495 510 561 612 660 748 765 935 990 1020 1122 1530 1683 1870 1980 2244 2805 3060 3366 3740 5610 6732 8415 11220 16830 33660 71347 142694 214041 285388 356735 428082 642123 713470 784817 856164 1070205 1212899 1284246 1426940 1569634 2140410 2354451 2425798 2568492 3139268 3210615 3638697 3924085 4280820 4708902 4851596 6064495 6421230 7063353 7277394 7848170 9417804 10916091 11772255 12128990 12842460 13341889 14126706 14554788 15696340 18193485 21832182 23544510 24257980 26683778 28253412 35316765 36386970 40025667 43664364 47089020 53367556 54580455 66709445 70633530 72773940 80051334 109160910 120077001 133418890 141267060 160102668 200128335 218321820 240154002 266837780 400256670 480308004 600385005 800513340 1200770010 2401540020