Base | Representation |
---|---|
bin | 1110001100111010111111… |
… | …10010101110100000001001 |
3 | 11002120120220022012000120010 |
4 | 13012131133302232200021 |
5 | 13043134140432424114 |
6 | 150231001445222133 |
7 | 6402213205634250 |
oct | 706353762564011 |
9 | 132516808160503 |
10 | 31230314342409 |
11 | 9a5077a301296 |
12 | 3604789101949 |
13 | 145701026c070 |
14 | 79d7ab987797 |
15 | 39258aed1c59 |
hex | 1c675fcae809 |
31230314342409 has 128 divisors (see below), whose sum is σ = 52383397248000. Its totient is φ = 16111978168320.
The previous prime is 31230314342351. The next prime is 31230314342429. The reversal of 31230314342409 is 90424341303213.
It is not a de Polignac number, because 31230314342409 - 237 = 31092875388937 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (31230314342429) by changing a digit.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3139035567 + ... + 3139045515.
It is an arithmetic number, because the mean of its divisors is an integer number (409245291000).
Almost surely, 231230314342409 is an apocalyptic number.
31230314342409 is a gapful number since it is divisible by the number (39) formed by its first and last digit.
It is an amenable number.
31230314342409 is a deficient number, since it is larger than the sum of its proper divisors (21153082905591).
31230314342409 is a wasteful number, since it uses less digits than its factorization.
31230314342409 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11075.
The product of its (nonzero) digits is 186624, while the sum is 39.
The spelling of 31230314342409 in words is "thirty-one trillion, two hundred thirty billion, three hundred fourteen million, three hundred forty-two thousand, four hundred nine".
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