Search a number
-
+
2101420230 = 235713769751
BaseRepresentation
bin111110101000001…
…0010000011000110
312102110012012121220
41331100102003012
513300430421410
6544304421210
7103034530410
oct17520220306
95373165556
102101420230
11989219138
124a7917806
13276497430
1415d1399b0
15c4748070
hex7d4120c6

2101420230 has 64 divisors (see below), whose sum is σ = 6207280128. Its totient is φ = 443376000.

The previous prime is 2101420193. The next prime is 2101420249. The reversal of 2101420230 is 320241012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382146 + ... + 387605.

It is an arithmetic number, because the mean of its divisors is an integer number (96988752).

Almost surely, 22101420230 is an apocalyptic number.

2101420230 is an abundant number, since it is smaller than the sum of its proper divisors (4105859898).

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

2101420230 is a wasteful number, since it uses less digits than its factorization.

2101420230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769781.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2101420230 is about 45841.2503101737. The cubic root of 2101420230 is about 1280.8677851624.

Adding to 2101420230 its reverse (320241012), we get a palindrome (2421661242).

The spelling of 2101420230 in words is "two billion, one hundred one million, four hundred twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 769751 1539502 2309253 3848755 4618506 5388257 7697510 10006763 10776514 11546265 16164771 20013526 23092530 26941285 30020289 32329542 50033815 53882570 60040578 70047341 80823855 100067630 140094682 150101445 161647710 210142023 300202890 350236705 420284046 700473410 1050710115 2101420230