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157139662 = 2389201979
BaseRepresentation
bin10010101110111…
…00001011001110
3101221200112002111
421113130023032
5310211432122
623332014234
73615444061
oct1127341316
9357615074
10157139662
1180779399
124476137a
132672b864
1416c268d8
15dbded77
hex95dc2ce

157139662 has 8 divisors (see below), whose sum is σ = 236316600. Its totient is φ = 78367464.

The previous prime is 157139641. The next prime is 157139681. The reversal of 157139662 is 266931751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100212 + ... + 101767.

It is an arithmetic number, because the mean of its divisors is an integer number (29539575).

Almost surely, 2157139662 is an apocalyptic number.

157139662 is a deficient number, since it is larger than the sum of its proper divisors (79176938).

157139662 is a wasteful number, since it uses less digits than its factorization.

157139662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202370.

The product of its digits is 68040, while the sum is 40.

The square root of 157139662 is about 12535.5359677997. The cubic root of 157139662 is about 539.6289884073.

The spelling of 157139662 in words is "one hundred fifty-seven million, one hundred thirty-nine thousand, six hundred sixty-two".

Divisors: 1 2 389 778 201979 403958 78569831 157139662