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157863060431 is a prime number
BaseRepresentation
bin1001001100000101011…
…1110010001111001111
3120002110202012100222222
42103001113302033033
510041300420413211
6200304333125555
714255664605456
oct2230127621717
9502422170888
10157863060431
1160a496448aa
12267180298bb
1311b6a61723b
1478d7badb9d
15418e07a1db
hex24c15f23cf

157863060431 has 2 divisors, whose sum is σ = 157863060432. Its totient is φ = 157863060430.

The previous prime is 157863060391. The next prime is 157863060473. The reversal of 157863060431 is 134060368751.

It is a weak prime.

It is an emirp because it is prime and its reverse (134060368751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157863060431 - 218 = 157862798287 is a prime.

It is a super-2 number, since 2×1578630604312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157863060491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78931530215 + 78931530216.

It is an arithmetic number, because the mean of its divisors is an integer number (78931530216).

Almost surely, 2157863060431 is an apocalyptic number.

157863060431 is a deficient number, since it is larger than the sum of its proper divisors (1).

157863060431 is an equidigital number, since it uses as much as digits as its factorization.

157863060431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 157863060431 in words is "one hundred fifty-seven billion, eight hundred sixty-three million, sixty thousand, four hundred thirty-one".