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15730157142 = 2327124842517
BaseRepresentation
bin11101010011001011…
…10010011001010110
31111121021001202222200
432221211302121112
5224203410012032
611120515505330
71064544062310
oct165145623126
944537052880
1015730157142
116742299977
12306bbb8246
131638bb6abb
14a931ac7b0
15620e9247c
hex3a9972656

15730157142 has 24 divisors (see below), whose sum is σ = 38950865616. Its totient is φ = 4494330576.

The previous prime is 15730157117. The next prime is 15730157143. The reversal of 15730157142 is 24175103751.

15730157142 is a `hidden beast` number, since 1 + 57 + 30 + 1 + 571 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 15730157097 and 15730157106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15730157143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62421133 + ... + 62421384.

It is an arithmetic number, because the mean of its divisors is an integer number (1622952734).

Almost surely, 215730157142 is an apocalyptic number.

15730157142 is an abundant number, since it is smaller than the sum of its proper divisors (23220708474).

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

15730157142 is a wasteful number, since it uses less digits than its factorization.

15730157142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124842532 (or 124842529 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The spelling of 15730157142 in words is "fifteen billion, seven hundred thirty million, one hundred fifty-seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 124842517 249685034 374527551 749055102 873897619 1123582653 1747795238 2247165306 2621692857 5243385714 7865078571 15730157142