Search a number
-
+
125815460 = 22521792887
BaseRepresentation
bin1110111111111…
…00101010100100
322202202002100212
413133330222210
5224202043320
620252354552
73055261631
oct737745244
9282662325
10125815460
1165024021
1236175a58
13200b1c24
14129d1188
15b0a39c5
hex77fcaa4

125815460 has 24 divisors (see below), whose sum is σ = 264425280. Its totient is φ = 50285664.

The previous prime is 125815447. The next prime is 125815513. The reversal of 125815460 is 64518521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42137 + ... + 45023.

It is an arithmetic number, because the mean of its divisors is an integer number (11017720).

Almost surely, 2125815460 is an apocalyptic number.

125815460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125815460 is an abundant number, since it is smaller than the sum of its proper divisors (138609820).

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

125815460 is a wasteful number, since it uses less digits than its factorization.

125815460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075 (or 5073 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 125815460 is about 11216.7490834020. The cubic root of 125815460 is about 501.0849241764.

The spelling of 125815460 in words is "one hundred twenty-five million, eight hundred fifteen thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 2179 2887 4358 5774 8716 10895 11548 14435 21790 28870 43580 57740 6290773 12581546 25163092 31453865 62907730 125815460