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51230425 = 525873491
BaseRepresentation
bin1100001101101…
…1011011011001
310120101202221011
43003123123121
5101103333200
65030013521
71161310561
oct303333331
9116352834
1051230425
1126a111a4
12151a72a1
13a7c947c
146b37da1
15476e5ba
hex30db6d9

51230425 has 12 divisors (see below), whose sum is σ = 63652176. Its totient is φ = 40902800.

The previous prime is 51230419. The next prime is 51230429. The reversal of 51230425 is 52403215.

It is not a de Polignac number, because 51230425 - 25 = 51230393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51230396 and 51230405.

It is not an unprimeable number, because it can be changed into a prime (51230429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12930 + ... + 16420.

It is an arithmetic number, because the mean of its divisors is an integer number (5304348).

Almost surely, 251230425 is an apocalyptic number.

It is an amenable number.

51230425 is a deficient number, since it is larger than the sum of its proper divisors (12421751).

51230425 is a wasteful number, since it uses less digits than its factorization.

51230425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088 (or 4083 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51230425 is about 7157.5432237605. The cubic root of 51230425 is about 371.4006443852.

The spelling of 51230425 in words is "fifty-one million, two hundred thirty thousand, four hundred twenty-five".

Divisors: 1 5 25 587 2935 3491 14675 17455 87275 2049217 10246085 51230425