Base | Representation |
---|---|
bin | 101101100011111110101… |
… | …111110010100000110101 |
3 | 102002022200110221112201000 |
4 | 231203332233302200311 |
5 | 402244302043211041 |
6 | 10354211033153513 |
7 | 442131231001542 |
oct | 55437657624065 |
9 | 12068613845630 |
10 | 3131010132021 |
11 | aa7943659a62 |
12 | 426988b5b899 |
13 | 199339a7b595 |
14 | ab7825c9bc9 |
15 | 566a10dabb6 |
hex | 2d8febf2835 |
3131010132021 has 32 divisors (see below), whose sum is σ = 4756333276800. Its totient is φ = 2034430162560.
The previous prime is 3131010131999. The next prime is 3131010132043. The reversal of 3131010132021 is 1202310101313.
3131010132021 is a `hidden beast` number, since 3 + 1 + 310 + 10 + 1 + 320 + 21 = 666.
It is an interprime number because it is at equal distance from previous prime (3131010131999) and next prime (3131010132043).
It is not a de Polignac number, because 3131010132021 - 25 = 3131010131989 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 3131010131985 and 3131010132003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3131010132121) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259786 + ... + 2515851.
It is an arithmetic number, because the mean of its divisors is an integer number (148635414900).
Almost surely, 23131010132021 is an apocalyptic number.
It is an amenable number.
3131010132021 is a deficient number, since it is larger than the sum of its proper divisors (1625323144779).
3131010132021 is a wasteful number, since it uses less digits than its factorization.
3131010132021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2776706 (or 2776700 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 3131010132021 its reverse (1202310101313), we get a palindrome (4333320233334).
The spelling of 3131010132021 in words is "three trillion, one hundred thirty-one billion, ten million, one hundred thirty-two thousand, twenty-one".
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