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51023025 = 3252226769
BaseRepresentation
bin1100001010100…
…0110010110001
310120000020102200
43002220302301
5101030214100
65021333413
71156455114
oct302506261
9116006380
1051023025
112688a399
1215107269
13a755c51
146ac257b
15472ce00
hex30a8cb1

51023025 has 18 divisors (see below), whose sum is σ = 91388310. Its totient is φ = 27212160.

The previous prime is 51022997. The next prime is 51023053. The reversal of 51023025 is 52032015.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51022997) and next prime (51023053).

It can be written as a sum of positive squares in 3 ways, for example, as 576 + 51022449 = 24^2 + 7143^2 .

It is not a de Polignac number, because 51023025 - 218 = 50760881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51022989 and 51023007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 113160 + ... + 113609.

Almost surely, 251023025 is an apocalyptic number.

It is an amenable number.

51023025 is a deficient number, since it is larger than the sum of its proper divisors (40365285).

51023025 is a wasteful number, since it uses less digits than its factorization.

51023025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226785 (or 226777 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 51023025 is about 7143.0403190798. The cubic root of 51023025 is about 370.8987767624.

The spelling of 51023025 in words is "fifty-one million, twenty-three thousand, twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 226769 680307 1133845 2040921 3401535 5669225 10204605 17007675 51023025