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157049379 = 3231562901
BaseRepresentation
bin10010101110001…
…10001000100011
3101221111221020200
421113012020203
5310201040004
623330040243
73614616624
oct1127061043
9357457220
10157049379
1180717583
1244719083
13266c9736
1416c01a4b
15dbc3239
hex95c6223

157049379 has 12 divisors (see below), whose sum is σ = 234167232. Its totient is φ = 101322000.

The previous prime is 157049377. The next prime is 157049381. The reversal of 157049379 is 973940751.

157049379 is a `hidden beast` number, since 1 + 570 + 4 + 9 + 3 + 79 = 666.

It is an interprime number because it is at equal distance from previous prime (157049377) and next prime (157049381).

It is not a de Polignac number, because 157049379 - 21 = 157049377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157049371) 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, 281172 + ... + 281729.

It is an arithmetic number, because the mean of its divisors is an integer number (19513936).

Almost surely, 2157049379 is an apocalyptic number.

157049379 is a deficient number, since it is larger than the sum of its proper divisors (77117853).

157049379 is a wasteful number, since it uses less digits than its factorization.

157049379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562938 (or 562935 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 157049379 is about 12531.9343678460. The cubic root of 157049379 is about 539.5256224870.

The spelling of 157049379 in words is "one hundred fifty-seven million, forty-nine thousand, three hundred seventy-nine".

Divisors: 1 3 9 31 93 279 562901 1688703 5066109 17449931 52349793 157049379