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157638350 = 2523152767
BaseRepresentation
bin10010110010101…
…01111011001110
3101222121212011102
421121111323032
5310323411400
623350423102
73622622012
oct1131257316
9358555142
10157638350
1180a8a031
1244961a92
132687483c
1416d16542
15dc8c9d5
hex9655ece

157638350 has 12 divisors (see below), whose sum is σ = 293207424. Its totient is φ = 63055320.

The previous prime is 157638323. The next prime is 157638353. The reversal of 157638350 is 53836751.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157638353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1576334 + ... + 1576433.

It is an arithmetic number, because the mean of its divisors is an integer number (24433952).

Almost surely, 2157638350 is an apocalyptic number.

157638350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157638350 is a deficient number, since it is larger than the sum of its proper divisors (135569074).

157638350 is a wasteful number, since it uses less digits than its factorization.

157638350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152779 (or 3152774 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 157638350 is about 12555.4111840274. The cubic root of 157638350 is about 540.1992291845.

The spelling of 157638350 in words is "one hundred fifty-seven million, six hundred thirty-eight thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 3152767 6305534 15763835 31527670 78819175 157638350