Search a number
-
+
125731460 = 22523326981
BaseRepresentation
bin1110111111010…
…00001010000100
322202120211010202
413133220022010
5224141401320
620250510032
73054462011
oct737501204
9282524122
10125731460
1164a769a8
1236135318
132008291a
14129ac708
15b088b75
hex77e8284

125731460 has 24 divisors (see below), whose sum is σ = 265179096. Its totient is φ = 50074880.

The previous prime is 125731433. The next prime is 125731511. The reversal of 125731460 is 64137521.

It can be written as a sum of positive squares in 4 ways, for example, as 470596 + 125260864 = 686^2 + 11192^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8831 + ... + 18150.

It is an arithmetic number, because the mean of its divisors is an integer number (11049129).

Almost surely, 2125731460 is an apocalyptic number.

125731460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125731460 is an abundant number, since it is smaller than the sum of its proper divisors (139447636).

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

125731460 is a wasteful number, since it uses less digits than its factorization.

125731460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27223 (or 27221 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 125731460 is about 11213.0040577893. The cubic root of 125731460 is about 500.9733838182.

Adding to 125731460 its reverse (64137521), we get a palindrome (189868981).

The spelling of 125731460 in words is "one hundred twenty-five million, seven hundred thirty-one thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 233 466 932 1165 2330 4660 26981 53962 107924 134905 269810 539620 6286573 12573146 25146292 31432865 62865730 125731460