Search a number
-
+
242342720 = 26519231733
BaseRepresentation
bin11100111000111…
…01101101000000
3121220000021201022
432130131231000
5444014431340
640014125012
76001610354
oct1634355500
9556007638
10242342720
11114883744
12691b0768
133b291279
1424285464
15164203b5
hexe71db40

242342720 has 112 divisors (see below), whose sum is σ = 634227840. Its totient is φ = 87791616.

The previous prime is 242342713. The next prime is 242342729. The reversal of 242342720 is 27243242.

242342720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 242342720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242342729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138974 + ... + 140706.

Almost surely, 2242342720 is an apocalyptic number.

242342720 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 242342720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317113920).

242342720 is an abundant number, since it is smaller than the sum of its proper divisors (391885120).

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

242342720 is a wasteful number, since it uses less digits than its factorization.

242342720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 242342720 is about 15567.3607268541. The cubic root of 242342720 is about 623.4620061577.

Adding to 242342720 its reverse (27243242), we get a palindrome (269585962).

The spelling of 242342720 in words is "two hundred forty-two million, three hundred forty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 23 32 38 40 46 64 76 80 92 95 115 152 160 184 190 230 304 320 368 380 437 460 608 736 760 874 920 1216 1472 1520 1733 1748 1840 2185 3040 3466 3496 3680 4370 6080 6932 6992 7360 8665 8740 13864 13984 17330 17480 27728 27968 32927 34660 34960 39859 55456 65854 69320 69920 79718 110912 131708 138640 139840 159436 164635 199295 263416 277280 318872 329270 398590 526832 554560 637744 658540 757321 797180 1053664 1275488 1317080 1514642 1594360 2107328 2550976 2634160 3029284 3188720 3786605 5268320 6058568 6377440 7573210 10536640 12117136 12754880 15146420 24234272 30292840 48468544 60585680 121171360 242342720