Base | Representation |
---|---|
bin | 10111101000100010001111… |
… | …10001110100111010110001 |
3 | 20211000022110011020221111021 |
4 | 23310101013301310322301 |
5 | 23302440142440310440 |
6 | 302310455151015441 |
7 | 13642505456516251 |
oct | 1364210761647261 |
9 | 224008404227437 |
10 | 51970308525745 |
11 | 156175363328a5 |
12 | 59b423b20a581 |
13 | 22cca187b686c |
14 | cb953aa01961 |
15 | 601d0115884a |
hex | 2f4447c74eb1 |
51970308525745 has 8 divisors (see below), whose sum is σ = 63153792639360. Its totient is φ = 41049965214960.
The previous prime is 51970308525731. The next prime is 51970308525787. The reversal of 51970308525745 is 54752580307915.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 51970308525745 - 213 = 51970308517553 is a prime.
It is a super-2 number, since 2×519703085257452 (a number of 28 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65785200271 + ... + 65785201060.
It is an arithmetic number, because the mean of its divisors is an integer number (7894224079920).
Almost surely, 251970308525745 is an apocalyptic number.
It is an amenable number.
51970308525745 is a deficient number, since it is larger than the sum of its proper divisors (11183484113615).
51970308525745 is a wasteful number, since it uses less digits than its factorization.
51970308525745 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 131570401415.
The product of its (nonzero) digits is 52920000, while the sum is 61.
The spelling of 51970308525745 in words is "fifty-one trillion, nine hundred seventy billion, three hundred eight million, five hundred twenty-five thousand, seven hundred forty-five".
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