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51314650 = 2521026293
BaseRepresentation
bin1100001110111…
…1111111011010
310120120001110121
43003233333122
5101114032100
65031503454
71162111252
oct303577732
9116501417
1051314650
1126a69502
1215227b8a
13a8288ca
146b5a962
15478951a
hex30effda

51314650 has 12 divisors (see below), whose sum is σ = 95445342. Its totient is φ = 20525840.

The previous prime is 51314639. The next prime is 51314677. The reversal of 51314650 is 5641315.

It can be written as a sum of positive squares in 3 ways, for example, as 41822089 + 9492561 = 6467^2 + 3081^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 513097 + ... + 513196.

Almost surely, 251314650 is an apocalyptic number.

51314650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51314650 is a deficient number, since it is larger than the sum of its proper divisors (44130692).

51314650 is a wasteful number, since it uses less digits than its factorization.

51314650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026305 (or 1026300 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51314650 is about 7163.4244604100. The cubic root of 51314650 is about 371.6040657724.

Adding to 51314650 its reverse (5641315), we get a palindrome (56955965).

The spelling of 51314650 in words is "fifty-one million, three hundred fourteen thousand, six hundred fifty".

Divisors: 1 2 5 10 25 50 1026293 2052586 5131465 10262930 25657325 51314650