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151240804 = 22112132432
BaseRepresentation
bin10010000001111…
…00000001100100
3101112120211101021
421000330001210
5302204201204
623001340524
73514345201
oct1100740144
9345524337
10151240804
117840a500
1242797744
1325444900
141612cca8
15d427154
hex903c064

151240804 has 81 divisors (see below), whose sum is σ = 322516089. Its totient is φ = 61981920.

The previous prime is 151240799. The next prime is 151240807. The reversal of 151240804 is 408042151.

The square root of 151240804 is 12298.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22372900 + 128867904 = 4730^2 + 11352^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151240807) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3517207 + ... + 3517249.

Almost surely, 2151240804 is an apocalyptic number.

151240804 is the 12298-th square number.

It is an amenable number.

151240804 is an abundant number, since it is smaller than the sum of its proper divisors (171275285).

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

151240804 is a wasteful number, since it uses less digits than its factorization.

151240804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The cubic root of 151240804 is about 532.7903200618.

Multiplying 151240804 by its sum of digits (25), we get a square (3781020100 = 614902).

Adding to 151240804 its reverse (408042151), we get a palindrome (559282955).

The spelling of 151240804 in words is "one hundred fifty-one million, two hundred forty thousand, eight hundred four".

Divisors: 1 2 4 11 13 22 26 43 44 52 86 121 143 169 172 242 286 338 473 484 559 572 676 946 1118 1573 1849 1859 1892 2236 3146 3698 3718 5203 6149 6292 7267 7396 7436 10406 12298 14534 20339 20449 20812 24037 24596 29068 40678 40898 48074 67639 79937 81356 81796 96148 135278 159874 223729 264407 270556 312481 319748 447458 528814 624962 879307 894916 1057628 1249924 1758614 2908477 3437291 3517228 5816954 6874582 11633908 13749164 37810201 75620402 151240804