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125389164031 = 397443712961
BaseRepresentation
bin111010011000111000…
…1101100110111111111
3102222122120211111202021
41310301301230313333
54023244111222111
6133334124541011
712026155210615
oct1646161546777
9388576744667
10125389164031
11491a4a0689a
12203746b1767
13ba93862321
1460d6d8b6b5
1533dd17ed71
hex1d31c6cdff

125389164031 has 8 divisors (see below), whose sum is σ = 125988940944. Its totient is φ = 124790814720.

The previous prime is 125389164029. The next prime is 125389164041. The reversal of 125389164031 is 130461983521.

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

It is a cyclic number.

It is not a de Polignac number, because 125389164031 - 21 = 125389164029 is a prime.

It is a super-2 number, since 2×1253891640312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125389164001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180610 + ... + 532351.

It is an arithmetic number, because the mean of its divisors is an integer number (15748617618).

Almost surely, 2125389164031 is an apocalyptic number.

125389164031 is a deficient number, since it is larger than the sum of its proper divisors (599776913).

125389164031 is an equidigital number, since it uses as much as digits as its factorization.

125389164031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713801.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 125389164031 in words is "one hundred twenty-five billion, three hundred eighty-nine million, one hundred sixty-four thousand, thirty-one".

Divisors: 1 397 443 175871 712961 283045517 315841723 125389164031