Search a number
-
+
125457913 = 719392863
BaseRepresentation
bin1110111101001…
…01010111111001
322202001220220101
413132211113321
5224104123123
620240555401
73052242340
oct736452771
9282056811
10125457913
11648aa429
1236022b61
131ccb8269
141293ab57
15b032aad
hex77a55f9

125457913 has 8 divisors (see below), whose sum is σ = 144124928. Its totient is φ = 106977024.

The previous prime is 125457901. The next prime is 125457919. The reversal of 125457913 is 319754521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125457913 - 25 = 125457881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125457919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45081 + ... + 47782.

It is an arithmetic number, because the mean of its divisors is an integer number (18015616).

Almost surely, 2125457913 is an apocalyptic number.

It is an amenable number.

125457913 is a deficient number, since it is larger than the sum of its proper divisors (18667015).

125457913 is an equidigital number, since it uses as much as digits as its factorization.

125457913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93063.

The product of its digits is 37800, while the sum is 37.

The square root of 125457913 is about 11200.7996589529. The cubic root of 125457913 is about 500.6098066360.

The spelling of 125457913 in words is "one hundred twenty-five million, four hundred fifty-seven thousand, nine hundred thirteen".

Divisors: 1 7 193 1351 92863 650041 17922559 125457913