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25945130 = 256142533
BaseRepresentation
bin110001011111…
…0010000101010
31210211011000202
41202332100222
523120221010
62324032202
7433346531
oct142762052
953734022
1025945130
1113710a62
128832662
1354b5463
143635318
1524276a5
hex18be42a

25945130 has 16 divisors (see below), whose sum is σ = 47467944. Its totient is φ = 10207680.

The previous prime is 25945099. The next prime is 25945163. The reversal of 25945130 is 3154952.

It can be written as a sum of positive squares in 4 ways, for example, as 10975969 + 14969161 = 3313^2 + 3869^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25945093 and 25945102.

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, 20657 + ... + 21876.

Almost surely, 225945130 is an apocalyptic number.

25945130 is a deficient number, since it is larger than the sum of its proper divisors (21522814).

25945130 is a wasteful number, since it uses less digits than its factorization.

25945130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42601.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 25945130 is about 5093.6362257232. The cubic root of 25945130 is about 296.0410598629.

The spelling of 25945130 in words is "twenty-five million, nine hundred forty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 61 122 305 610 42533 85066 212665 425330 2594513 5189026 12972565 25945130