Base | Representation |
---|---|
bin | 11011001001001… |
… | …10110101110001 |
3 | 120212110100210100 |
4 | 31210212311301 |
5 | 431242400311 |
6 | 34332223013 |
7 | 5433263430 |
oct | 1544466561 |
9 | 525410710 |
10 | 227700081 |
11 | 107592494 |
12 | 6430aa69 |
13 | 3823549b |
14 | 22353117 |
15 | 14ecba56 |
hex | d926d71 |
227700081 has 24 divisors (see below), whose sum is σ = 376787840. Its totient is φ = 129802176.
The previous prime is 227700073. The next prime is 227700089. The reversal of 227700081 is 180007722.
It is an interprime number because it is at equal distance from previous prime (227700073) and next prime (227700089).
It is not a de Polignac number, because 227700081 - 23 = 227700073 is a prime.
It is a super-2 number, since 2×2277000812 = 103694653774813122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (227700089) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23541 + ... + 31773.
Almost surely, 2227700081 is an apocalyptic number.
227700081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
227700081 is a deficient number, since it is larger than the sum of its proper divisors (149087759).
227700081 is a wasteful number, since it uses less digits than its factorization.
227700081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8685 (or 8682 counting only the distinct ones).
The product of its (nonzero) digits is 1568, while the sum is 27.
The square root of 227700081 is about 15089.7342918953. The cubic root of 227700081 is about 610.6434856030.
It can be divided in two parts, 2277000 and 81, that added together give a square (2277081 = 15092).
The spelling of 227700081 in words is "two hundred twenty-seven million, seven hundred thousand, eighty-one".
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