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125730061431 = 31343313239531
BaseRepresentation
bin111010100011000011…
…0000111110001110111
3110000112100021220001220
41311012012013301313
54024443343431211
6133432023321423
712040464613602
oct1650606076167
9400470256056
10125730061431
114935a384087
122044a8b0273
13bb1937c270
14612a369339
15340d06b806
hex1d46187c77

125730061431 has 32 divisors (see below), whose sum is σ = 185324950272. Its totient is φ = 75331226880.

The previous prime is 125730061417. The next prime is 125730061433. The reversal of 125730061431 is 134160037521.

It is not a de Polignac number, because 125730061431 - 29 = 125730060919 is a prime.

It is a super-2 number, since 2×1257300614312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125730061392 and 125730061401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125730061433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405136 + ... + 644666.

It is an arithmetic number, because the mean of its divisors is an integer number (5791404696).

Almost surely, 2125730061431 is an apocalyptic number.

125730061431 is a deficient number, since it is larger than the sum of its proper divisors (59594888841).

125730061431 is a wasteful number, since it uses less digits than its factorization.

125730061431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239903.

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 125730061431 its reverse (134160037521), we get a palindrome (259890098952).

The spelling of 125730061431 in words is "one hundred twenty-five billion, seven hundred thirty million, sixty-one thousand, four hundred thirty-one".

Divisors: 1 3 13 39 43 129 313 559 939 1677 4069 12207 13459 40377 174967 239531 524901 718593 3113903 9341709 10299833 30899499 74973203 133897829 224919609 401693487 974651639 2923954917 3223847729 9671543187 41910020477 125730061431