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157642014 = 23193136133
BaseRepresentation
bin10010110010101…
…10110100011110
3101222122001012010
421121112310132
5310324021024
623350452050
73622635465
oct1131266436
9358561163
10157642014
1180a91862
1244964026
13268763ca
1416d179dc
15dc8db29
hex9656d1e

157642014 has 16 divisors (see below), whose sum is σ = 316919952. Its totient is φ = 52274688.

The previous prime is 157641989. The next prime is 157642021. The reversal of 157642014 is 410246751.

157642014 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66909 + ... + 69224.

It is an arithmetic number, because the mean of its divisors is an integer number (19807497).

Almost surely, 2157642014 is an apocalyptic number.

157642014 is an abundant number, since it is smaller than the sum of its proper divisors (159277938).

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

157642014 is a wasteful number, since it uses less digits than its factorization.

157642014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136331.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 157642014 is about 12555.5570963618. The cubic root of 157642014 is about 540.2034144492.

Adding to 157642014 its reverse (410246751), we get a palindrome (567888765).

The spelling of 157642014 in words is "one hundred fifty-seven million, six hundred forty-two thousand, fourteen".

Divisors: 1 2 3 6 193 386 579 1158 136133 272266 408399 816798 26273669 52547338 78821007 157642014