Base | Representation |
---|---|
bin | 11101001100101000… |
… | …100010110110100111 |
3 | 2222220212102210012201 |
4 | 131030220202312213 |
5 | 1003201204434012 |
6 | 22222513155331 |
7 | 2156615403235 |
oct | 351450426647 |
9 | 88825383181 |
10 | 31350468007 |
11 | 123285816a1 |
12 | 60ab25bb47 |
13 | 2c580c04b1 |
14 | 1735945955 |
15 | c37487857 |
hex | 74ca22da7 |
31350468007 has 4 divisors (see below), whose sum is σ = 31359888720. Its totient is φ = 31341047296.
The previous prime is 31350467957. The next prime is 31350468029. The reversal of 31350468007 is 70086405313.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70086405313 = 29 ⋅2416772597.
It is a cyclic number.
It is not a de Polignac number, because 31350468007 - 211 = 31350465959 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31350468607) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4705363 + ... + 4712020.
It is an arithmetic number, because the mean of its divisors is an integer number (7839972180).
Almost surely, 231350468007 is an apocalyptic number.
31350468007 is a deficient number, since it is larger than the sum of its proper divisors (9420713).
31350468007 is an equidigital number, since it uses as much as digits as its factorization.
31350468007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9420712.
The product of its (nonzero) digits is 60480, while the sum is 37.
The spelling of 31350468007 in words is "thirty-one billion, three hundred fifty million, four hundred sixty-eight thousand, seven".
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