Base | Representation |
---|---|
bin | 10010111100100000… |
… | …10011111100010001 |
3 | 222020212000222212021 |
4 | 21132100103330101 |
5 | 131312321101011 |
6 | 4401141331441 |
7 | 510024234064 |
oct | 113620237421 |
9 | 28225028767 |
10 | 10171268881 |
11 | 434a463944 |
12 | 1b7a406b81 |
13 | c613251c7 |
14 | 6c6bc68db |
15 | 3e7e3e471 |
hex | 25e413f11 |
10171268881 has 4 divisors (see below), whose sum is σ = 10300019200. Its totient is φ = 10042518564.
The previous prime is 10171268851. The next prime is 10171268897. The reversal of 10171268881 is 18886217101.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18886217101 = 5479 ⋅3447019.
It is a cyclic number.
It is not a de Polignac number, because 10171268881 - 227 = 10037051153 is a prime.
It is a super-2 number, since 2×101712688812 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (10171268831) 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, 64375041 + ... + 64375198.
It is an arithmetic number, because the mean of its divisors is an integer number (2575004800).
Almost surely, 210171268881 is an apocalyptic number.
It is an amenable number.
10171268881 is a deficient number, since it is larger than the sum of its proper divisors (128750319).
10171268881 is an equidigital number, since it uses as much as digits as its factorization.
10171268881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 128750318.
The product of its (nonzero) digits is 43008, while the sum is 43.
The spelling of 10171268881 in words is "ten billion, one hundred seventy-one million, two hundred sixty-eight thousand, eight hundred eighty-one".
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