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51034687 = 1144910333
BaseRepresentation
bin1100001010101…
…1101000111111
310120000211102121
43002223220333
5101031102222
65021503411
71156534114
oct302535077
9116024377
1051034687
1126898130
1215111b67
13a75b352
146ac690b
1547315c7
hex30aba3f

51034687 has 8 divisors (see below), whose sum is σ = 55803600. Its totient is φ = 46287360.

The previous prime is 51034681. The next prime is 51034717. The reversal of 51034687 is 78643015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51034687 - 27 = 51034559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51034681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228 + ... + 10105.

It is an arithmetic number, because the mean of its divisors is an integer number (6975450).

Almost surely, 251034687 is an apocalyptic number.

51034687 is a deficient number, since it is larger than the sum of its proper divisors (4768913).

51034687 is a wasteful number, since it uses less digits than its factorization.

51034687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10793.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 51034687 is about 7143.8565915057. The cubic root of 51034687 is about 370.9270325811.

The spelling of 51034687 in words is "fifty-one million, thirty-four thousand, six hundred eighty-seven".

Divisors: 1 11 449 4939 10333 113663 4639517 51034687