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51712100506 = 2113763528379
BaseRepresentation
bin110000001010010010…
…000000100010011010
311221110220102212222201
4300022102000202122
51321401244204011
635431201440414
73510321413263
oct601222004232
9157426385881
1051712100506
111aa27150550
12a03234010a
134b51694c51
142707c8596a
151529d38cc1
hexc0a48089a

51712100506 has 16 divisors (see below), whose sum is σ = 86906823840. Its totient is φ = 22870216080.

The previous prime is 51712100501. The next prime is 51712100507. The reversal of 51712100506 is 60500121715.

It is not an unprimeable number, because it can be changed into a prime (51712100501) 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 7 ways as a sum of consecutive naturals, for example, 31763376 + ... + 31765003.

It is an arithmetic number, because the mean of its divisors is an integer number (5431676490).

Almost surely, 251712100506 is an apocalyptic number.

51712100506 is a deficient number, since it is larger than the sum of its proper divisors (35194723334).

51712100506 is a wasteful number, since it uses less digits than its factorization.

51712100506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63528429.

The product of its (nonzero) digits is 2100, while the sum is 28.

The spelling of 51712100506 in words is "fifty-one billion, seven hundred twelve million, one hundred thousand, five hundred six".

Divisors: 1 2 11 22 37 74 407 814 63528379 127056758 698812169 1397624338 2350550023 4701100046 25856050253 51712100506