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25214120 = 235630353
BaseRepresentation
bin110000000101…
…1110010101000
31202110000021022
41200023302220
522423322440
62300232012
7424213361
oct140136250
952400238
1025214120
1113261818
12853b608
1352ba7c9
1434c4b68
152330cb5
hex180bca8

25214120 has 16 divisors (see below), whose sum is σ = 56731860. Its totient is φ = 10085632.

The previous prime is 25214117. The next prime is 25214153. The reversal of 25214120 is 2141252.

It can be written as a sum of positive squares in 2 ways, for example, as 24226084 + 988036 = 4922^2 + 994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315137 + ... + 315216.

Almost surely, 225214120 is an apocalyptic number.

25214120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25214120 is an abundant number, since it is smaller than the sum of its proper divisors (31517740).

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

25214120 is a wasteful number, since it uses less digits than its factorization.

25214120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630364 (or 630360 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 25214120 is about 5021.3663479177. The cubic root of 25214120 is about 293.2341894050.

Adding to 25214120 its reverse (2141252), we get a palindrome (27355372).

The spelling of 25214120 in words is "twenty-five million, two hundred fourteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 630353 1260706 2521412 3151765 5042824 6303530 12607060 25214120