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157950015 = 3513677703
BaseRepresentation
bin10010110101000…
…10000000111111
3102000012200200120
421122202000333
5310413400030
623401230023
73625360446
oct1132420077
9360180616
10157950015
1181182203
1244a92313
1326953662
1416d97d5d
15dd00010
hex96a203f

157950015 has 16 divisors (see below), whose sum is σ = 252937728. Its totient is φ = 84167456.

The previous prime is 157949971. The next prime is 157950029. The reversal of 157950015 is 510059751.

It is a cyclic number.

It is not a de Polignac number, because 157950015 - 210 = 157948991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16654 + ... + 24356.

It is an arithmetic number, because the mean of its divisors is an integer number (15808608).

Almost surely, 2157950015 is an apocalyptic number.

157950015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157950015 is a deficient number, since it is larger than the sum of its proper divisors (94987713).

157950015 is a wasteful number, since it uses less digits than its factorization.

157950015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078.

The product of its (nonzero) digits is 7875, while the sum is 33.

The square root of 157950015 is about 12567.8166361544. The cubic root of 157950015 is about 540.5550020860. Note that the first 3 decimals are identical.

The spelling of 157950015 in words is "one hundred fifty-seven million, nine hundred fifty thousand, fifteen".

Divisors: 1 3 5 15 1367 4101 6835 7703 20505 23109 38515 115545 10530001 31590003 52650005 157950015