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25120130 = 257358859
BaseRepresentation
bin101111111010…
…0110110000010
31202021020100012
41133310312002
522412321010
62254224522
7423342350
oct137646602
952236305
1025120130
11131a8142
1284b5142
135286aa9
14349c7d0
152313005
hex17f4d82

25120130 has 16 divisors (see below), whose sum is σ = 51675840. Its totient is φ = 8612592.

The previous prime is 25120111. The next prime is 25120141. The reversal of 25120130 is 3102152.

It is a happy number.

25120130 is nontrivially palindromic in base 6.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179360 + ... + 179499.

It is an arithmetic number, because the mean of its divisors is an integer number (3229740).

Almost surely, 225120130 is an apocalyptic number.

25120130 is an abundant number, since it is smaller than the sum of its proper divisors (26555710).

25120130 is a wasteful number, since it uses less digits than its factorization.

25120130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358873.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 25120130 is about 5011.9986033518. The cubic root of 25120130 is about 292.8693753141.

Adding to 25120130 its sum of digits (14), we get a square (25120144 = 50122).

Adding to 25120130 its reverse (3102152), we get a palindrome (28222282).

The spelling of 25120130 in words is "twenty-five million, one hundred twenty thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 358859 717718 1794295 2512013 3588590 5024026 12560065 25120130