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51907484 = 22121710663
BaseRepresentation
bin1100011000000…
…0101110011100
310121200011200102
43012000232130
5101242014414
65052320232
71200130526
oct306005634
9117604612
1051907484
1127333952
1215473078
13a9a56b5
146c72a16
154854ede
hex3180b9c

51907484 has 12 divisors (see below), whose sum is σ = 90921264. Its totient is φ = 25929984.

The previous prime is 51907469. The next prime is 51907489. The reversal of 51907484 is 48470915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51907489) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 464 + ... + 10199.

It is an arithmetic number, because the mean of its divisors is an integer number (7576772).

Almost surely, 251907484 is an apocalyptic number.

It is an amenable number.

51907484 is a deficient number, since it is larger than the sum of its proper divisors (39013780).

51907484 is a wasteful number, since it uses less digits than its factorization.

51907484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11884 (or 11882 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 51907484 is about 7204.6848647252. The cubic root of 51907484 is about 373.0296272230.

The spelling of 51907484 in words is "fifty-one million, nine hundred seven thousand, four hundred eighty-four".

Divisors: 1 2 4 1217 2434 4868 10663 21326 42652 12976871 25953742 51907484