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15231005214 = 2323425325951
BaseRepresentation
bin11100010111101011…
…01011001000011110
31110022110211020021020
432023311223020132
5222143114131324
610555205145010
71046303260005
oct161365531036
943273736236
1015231005214
116506561717
122b509bb166
13158966aa29
14a46b97c3c
155e2245679
hex38bd6b21e

15231005214 has 32 divisors (see below), whose sum is σ = 31795144704. Its totient is φ = 4854933600.

The previous prime is 15231005197. The next prime is 15231005243. The reversal of 15231005214 is 41250013251.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573939 + ... + 599889.

It is an arithmetic number, because the mean of its divisors is an integer number (993598272).

Almost surely, 215231005214 is an apocalyptic number.

15231005214 is an abundant number, since it is smaller than the sum of its proper divisors (16564139490).

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

15231005214 is a wasteful number, since it uses less digits than its factorization.

15231005214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30232.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15231005214 its reverse (41250013251), we get a palindrome (56481018465).

The spelling of 15231005214 in words is "fifteen billion, two hundred thirty-one million, five thousand, two hundred fourteen".

Divisors: 1 2 3 6 23 46 69 138 4253 8506 12759 25518 25951 51902 77853 97819 155706 195638 293457 586914 596873 1193746 1790619 3581238 110369603 220739206 331108809 662217618 2538500869 5077001738 7615502607 15231005214