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51086518480147 = 3139732003129707
BaseRepresentation
bin10111001110110100000011…
…10010010110110100010011
320200212211020022100212100111
423213122001302112310103
523144000142212331042
6300352453403102151
713521610360213063
oct1347320162266423
9220784208325314
1051086518480147
111530674194a737
125890aab811957
132267590444b67
14c8885a4013a3
155d8d26c96517
hex2e7681c96d13

51086518480147 has 16 divisors (see below), whose sum is σ = 52869362660352. Its totient is φ = 49312114774560.

The previous prime is 51086518480117. The next prime is 51086518480157. The reversal of 51086518480147 is 74108481568015.

It is a happy number.

51086518480147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51086518480147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51086518480091 and 51086518480100.

It is not an unprimeable number, because it can be changed into a prime (51086518480117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393796068 + ... + 393925774.

It is an arithmetic number, because the mean of its divisors is an integer number (3304335166272).

Almost surely, 251086518480147 is an apocalyptic number.

51086518480147 is a deficient number, since it is larger than the sum of its proper divisors (1782844180205).

51086518480147 is a wasteful number, since it uses less digits than its factorization.

51086518480147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162138.

The product of its (nonzero) digits is 8601600, while the sum is 58.

The spelling of 51086518480147 in words is "fifty-one trillion, eighty-six billion, five hundred eighteen million, four hundred eighty thousand, one hundred forty-seven".

Divisors: 1 31 397 12307 32003 129707 992093 4020917 12705191 51493679 393860921 1596304049 4151013121 128681406751 1647952209037 51086518480147