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51241325 = 5212716139
BaseRepresentation
bin1100001101111…
…0000101101101
310120102022212212
43003132011231
5101104210300
65030140205
71161354422
oct303360555
9116368785
1051241325
1126a19403
12151b1665
13a801415
146b3bd49
154772935
hex30de16d

51241325 has 12 divisors (see below), whose sum is σ = 64043520. Its totient is φ = 40667760.

The previous prime is 51241303. The next prime is 51241331. The reversal of 51241325 is 52314215.

It is not a de Polignac number, because 51241325 - 26 = 51241261 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51241325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4895 + ... + 11244.

It is an arithmetic number, because the mean of its divisors is an integer number (5336960).

Almost surely, 251241325 is an apocalyptic number.

It is an amenable number.

51241325 is a deficient number, since it is larger than the sum of its proper divisors (12802195).

51241325 is a wasteful number, since it uses less digits than its factorization.

51241325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16276 (or 16271 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 51241325 is about 7158.3046177150. The cubic root of 51241325 is about 371.4269827700.

The spelling of 51241325 in words is "fifty-one million, two hundred forty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 127 635 3175 16139 80695 403475 2049653 10248265 51241325