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157031531054 = 2339972309491
BaseRepresentation
bin1001001000111111001…
…1110000001000101110
3120000022210112022010122
42102033303300020232
510033100032443204
6200050030404542
714226246663536
oct2221763601056
9500283468118
10157031531054
1160662229542
1226525660752
1311a67275218
1478595984c6
1541410760be
hex248fcf022e

157031531054 has 8 divisors (see below), whose sum is σ = 235554327048. Its totient is φ = 78513422040.

The previous prime is 157031531039. The next prime is 157031531101. The reversal of 157031531054 is 450135130751.

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, 1086752 + ... + 1222739.

It is an arithmetic number, because the mean of its divisors is an integer number (29444290881).

Almost surely, 2157031531054 is an apocalyptic number.

157031531054 is a deficient number, since it is larger than the sum of its proper divisors (78522795994).

157031531054 is a wasteful number, since it uses less digits than its factorization.

157031531054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343490.

The product of its (nonzero) digits is 31500, while the sum is 35.

The spelling of 157031531054 in words is "one hundred fifty-seven billion, thirty-one million, five hundred thirty-one thousand, fifty-four".

Divisors: 1 2 33997 67994 2309491 4618982 78515765527 157031531054