Base | Representation |
---|---|
bin | 10011000110010010001… |
… | …111100101101101001101 |
3 | 11122110120201002221211100 |
4 | 103012102033211231031 |
5 | 133000313124213141 |
6 | 2442530005013313 |
7 | 163550645624646 |
oct | 23062217455515 |
9 | 4573521087740 |
10 | 1312418585421 |
11 | 466659093229 |
12 | 1924323b4239 |
13 | 969b6ba9b38 |
14 | 47742a086cd |
15 | 242142cb0b6 |
hex | 131923e5b4d |
1312418585421 has 48 divisors (see below), whose sum is σ = 1983776610816. Its totient is φ = 834522641568.
The previous prime is 1312418585419. The next prime is 1312418585447. The reversal of 1312418585421 is 1245858142131.
1312418585421 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 41 + 8 + 585 + 4 + 21 = 666.
It is not a de Polignac number, because 1312418585421 - 21 = 1312418585419 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1312418595421) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110068566 + ... + 110080488.
It is an arithmetic number, because the mean of its divisors is an integer number (41328679392).
Almost surely, 21312418585421 is an apocalyptic number.
It is an amenable number.
1312418585421 is a deficient number, since it is larger than the sum of its proper divisors (671358025395).
1312418585421 is a wasteful number, since it uses less digits than its factorization.
1312418585421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13422 (or 13419 counting only the distinct ones).
The product of its digits is 307200, while the sum is 45.
The spelling of 1312418585421 in words is "one trillion, three hundred twelve billion, four hundred eighteen million, five hundred eighty-five thousand, four hundred twenty-one".
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