Base | Representation |
---|---|
bin | 1001000110010100011… |
… | …01000011100100001101 |
3 | 1002212221201121211100220 |
4 | 10203022031003210031 |
5 | 20110231244043141 |
6 | 355341551141553 |
7 | 31405156465452 |
oct | 4431215034415 |
9 | 1085851554326 |
10 | 312630065421 |
11 | 1106495813a3 |
12 | 5070b2148b9 |
13 | 236336879bb |
14 | 111ba6d1829 |
15 | 81eb3da766 |
hex | 48ca34390d |
312630065421 has 8 divisors (see below), whose sum is σ = 416847194304. Its totient is φ = 208416490080.
The previous prime is 312630065413. The next prime is 312630065431. The reversal of 312630065421 is 124560036213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 312630065421 - 23 = 312630065413 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312630065431) 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, 675840 + ... + 1040201.
It is an arithmetic number, because the mean of its divisors is an integer number (52105899288).
Almost surely, 2312630065421 is an apocalyptic number.
It is an amenable number.
312630065421 is a deficient number, since it is larger than the sum of its proper divisors (104217128883).
312630065421 is a wasteful number, since it uses less digits than its factorization.
312630065421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1776771.
The product of its (nonzero) digits is 25920, while the sum is 33.
The spelling of 312630065421 in words is "three hundred twelve billion, six hundred thirty million, sixty-five thousand, four hundred twenty-one".
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