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125426131038 = 23213991540877
BaseRepresentation
bin111010011001111111…
…0101110000001011110
3102222202011101121221200
41310303332232001132
54023333042143123
6133341525140330
712030114344265
oct1646376560136
9388664347850
10125426131038
114921386573a
1220384b5a6a6
13ba9b4064b0
1460dbc515dc
1533e1533143
hex1d33fae05e

125426131038 has 48 divisors (see below), whose sum is σ = 292956832896. Its totient is φ = 38553641280.

The previous prime is 125426131003. The next prime is 125426131043. The reversal of 125426131038 is 830131624521.

125426131038 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 2 + 613 + 1 + 0 + 38 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125426130993 and 125426131011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38545 + ... + 502332.

It is an arithmetic number, because the mean of its divisors is an integer number (6103267352).

Almost surely, 2125426131038 is an apocalyptic number.

125426131038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

125426131038 is an abundant number, since it is smaller than the sum of its proper divisors (167530701858).

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

125426131038 is a wasteful number, since it uses less digits than its factorization.

125426131038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541889 (or 541886 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 125426131038 its reverse (830131624521), we get a palindrome (955557755559).

The spelling of 125426131038 in words is "one hundred twenty-five billion, four hundred twenty-six million, one hundred thirty-one thousand, thirty-eight".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 991 1982 2973 5946 8919 12883 17838 25766 38649 77298 115947 231894 540877 1081754 1622631 3245262 4867893 7031401 9735786 14062802 21094203 42188406 63282609 126565218 536009107 1072018214 1608027321 3216054642 4824081963 6968118391 9648163926 13936236782 20904355173 41808710346 62713065519 125426131038