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51234325 = 527612693
BaseRepresentation
bin1100001101110…
…0011000010101
310120101222021121
43003130120111
5101103444300
65030043541
71161325132
oct303343025
9116358247
1051234325
1126a1411a
12151a95b1
13a7cb18c
146b39589
15477081a
hex30dc615

51234325 has 12 divisors (see below), whose sum is σ = 63637668. Its totient is φ = 40918400.

The previous prime is 51234299. The next prime is 51234343. The reversal of 51234325 is 52343215.

It can be written as a sum of positive squares in 6 ways, for example, as 14182756 + 37051569 = 3766^2 + 6087^2 .

It is a de Polignac number, because none of the positive numbers 2k-51234325 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51234325.

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, 17679 + ... + 20371.

It is an arithmetic number, because the mean of its divisors is an integer number (5303139).

Almost surely, 251234325 is an apocalyptic number.

It is an amenable number.

51234325 is a deficient number, since it is larger than the sum of its proper divisors (12403343).

51234325 is a wasteful number, since it uses less digits than its factorization.

51234325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464 (or 3459 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 51234325 is about 7157.8156584254. The cubic root of 51234325 is about 371.4100686401.

The spelling of 51234325 in words is "fifty-one million, two hundred thirty-four thousand, three hundred twenty-five".

Divisors: 1 5 25 761 2693 3805 13465 19025 67325 2049373 10246865 51234325