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125311404 = 22310442617
BaseRepresentation
bin1110111100000…
…01100110101100
322201210110221010
413132001212230
5224034431104
620233505220
73051062241
oct736014654
9281713833
10125311404
116480a349
1235b72210
131cc6667a
14128dd5c8
15b004489
hex77819ac

125311404 has 12 divisors (see below), whose sum is σ = 292393304. Its totient is φ = 41770464.

The previous prime is 125311367. The next prime is 125311409. The reversal of 125311404 is 404113521.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (125311409) 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, 5221297 + ... + 5221320.

Almost surely, 2125311404 is an apocalyptic number.

It is an amenable number.

125311404 is an abundant number, since it is smaller than the sum of its proper divisors (167081900).

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

125311404 is a wasteful number, since it uses less digits than its factorization.

125311404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10442624 (or 10442622 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 125311404 is about 11194.2576350556. The cubic root of 125311404 is about 500.4148610188.

Adding to 125311404 its reverse (404113521), we get a palindrome (529424925).

The spelling of 125311404 in words is "one hundred twenty-five million, three hundred eleven thousand, four hundred four".

Divisors: 1 2 3 4 6 12 10442617 20885234 31327851 41770468 62655702 125311404