Search a number
-
+
125310241 = 717901463
BaseRepresentation
bin1110111100000…
…01010100100001
322201210102100001
413132001110201
5224034411431
620233500001
73051055660
oct736012441
9281712301
10125310241
1164809491
1235b71601
131cc65c94
14128dcdd7
15b003e61
hex7781521

125310241 has 4 divisors (see below), whose sum is σ = 143211712. Its totient is φ = 107408772.

The previous prime is 125310239. The next prime is 125310253. The reversal of 125310241 is 142013521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142013521 = 1310924117.

It is a cyclic number.

It is not a de Polignac number, because 125310241 - 21 = 125310239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125310221) 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, 8950725 + ... + 8950738.

It is an arithmetic number, because the mean of its divisors is an integer number (35802928).

Almost surely, 2125310241 is an apocalyptic number.

It is an amenable number.

125310241 is a deficient number, since it is larger than the sum of its proper divisors (17901471).

125310241 is an equidigital number, since it uses as much as digits as its factorization.

125310241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17901470.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 125310241 is about 11194.2056886588. The cubic root of 125310241 is about 500.4133129174.

Adding to 125310241 its reverse (142013521), we get a palindrome (267323762).

The spelling of 125310241 in words is "one hundred twenty-five million, three hundred ten thousand, two hundred forty-one".

Divisors: 1 7 17901463 125310241