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51034805 = 528336067
BaseRepresentation
bin1100001010101…
…1101010110101
310120000211120222
43002223222311
5101031103210
65021504125
71156534343
oct302535265
9116024528
1051034805
1126898228
1215112045
13a75b413
146ac6993
154731655
hex30abab5

51034805 has 8 divisors (see below), whose sum is σ = 61459872. Its totient is φ = 40682448.

The previous prime is 51034801. The next prime is 51034807. The reversal of 51034805 is 50843015.

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 51034805 - 22 = 51034801 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 (51034801) 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, 16619 + ... + 19448.

It is an arithmetic number, because the mean of its divisors is an integer number (7682484).

Almost surely, 251034805 is an apocalyptic number.

It is an amenable number.

51034805 is a deficient number, since it is larger than the sum of its proper divisors (10425067).

51034805 is a wasteful number, since it uses less digits than its factorization.

51034805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36355.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51034805 is about 7143.8648503454. The cubic root of 51034805 is about 370.9273184609.

The spelling of 51034805 in words is "fifty-one million, thirty-four thousand, eight hundred five".

Divisors: 1 5 283 1415 36067 180335 10206961 51034805