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157031419371 = 352343806457
BaseRepresentation
bin1001001000111111001…
…1010100110111101011
3120000022210022121221020
42102033303110313223
510033100020404441
6200050024143523
714226246020121
oct2221763246753
9500283277836
10157031419371
1160662162642
1226525607ba3
1311a67236438
147859569911
154141052e66
hex248fcd4deb

157031419371 has 4 divisors (see below), whose sum is σ = 209375225832. Its totient is φ = 104687612912.

The previous prime is 157031419351. The next prime is 157031419381. The reversal of 157031419371 is 173914130751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157031419371 - 214 = 157031402987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157031419331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26171903226 + ... + 26171903231.

It is an arithmetic number, because the mean of its divisors is an integer number (52343806458).

Almost surely, 2157031419371 is an apocalyptic number.

157031419371 is a deficient number, since it is larger than the sum of its proper divisors (52343806461).

157031419371 is an equidigital number, since it uses as much as digits as its factorization.

157031419371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52343806460.

The product of its (nonzero) digits is 79380, while the sum is 42.

The spelling of 157031419371 in words is "one hundred fifty-seven billion, thirty-one million, four hundred nineteen thousand, three hundred seventy-one".

Divisors: 1 3 52343806457 157031419371