Base | Representation |
---|---|
bin | 101111100111101111… |
… | …001101101100101001 |
3 | 11212222111220212200020 |
4 | 233213233031230221 |
5 | 1314204413212100 |
6 | 35253500031053 |
7 | 3460053352350 |
oct | 574757155451 |
9 | 155874825606 |
10 | 51132554025 |
11 | 1a759aa2713 |
12 | 9ab0232489 |
13 | 4a8b5ab037 |
14 | 2690d04997 |
15 | 14e400b5a0 |
hex | be7bcdb29 |
51132554025 has 48 divisors (see below), whose sum is σ = 96691620864. Its totient is φ = 23356630080.
The previous prime is 51132554021. The next prime is 51132554129. The reversal of 51132554025 is 52045523115.
It is not a de Polignac number, because 51132554025 - 22 = 51132554021 is a prime.
It is a super-2 number, since 2×511325540252 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (51132554021) 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 47 ways as a sum of consecutive naturals, for example, 646702 + ... + 721448.
It is an arithmetic number, because the mean of its divisors is an integer number (2014408768).
Almost surely, 251132554025 is an apocalyptic number.
It is an amenable number.
51132554025 is a deficient number, since it is larger than the sum of its proper divisors (45559066839).
51132554025 is a wasteful number, since it uses less digits than its factorization.
51132554025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76070 (or 76065 counting only the distinct ones).
The product of its (nonzero) digits is 30000, while the sum is 33.
The spelling of 51132554025 in words is "fifty-one billion, one hundred thirty-two million, five hundred fifty-four thousand, twenty-five".
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