Base | Representation |
---|---|
bin | 1001100011010010… |
… | …1110000111101111 |
3 | 20121200112112002221 |
4 | 2120310232013233 |
5 | 20222333112411 |
6 | 1102230300211 |
7 | 120352163653 |
oct | 23064560757 |
9 | 6550475087 |
10 | 2563957231 |
11 | 10a6318020 |
12 | 5b67b7667 |
13 | 31b263674 |
14 | 1a473ca63 |
15 | 100161071 |
hex | 98d2e1ef |
2563957231 has 16 divisors (see below), whose sum is σ = 2825822880. Its totient is φ = 2306949120.
The previous prime is 2563957211. The next prime is 2563957321. The reversal of 2563957231 is 1327593652.
It is a cyclic number.
It is not a de Polignac number, because 2563957231 - 27 = 2563957103 is a prime.
It is a super-2 number, since 2×25639572312 = 13147753364794374722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2563957211) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432285 + ... + 1434073.
It is an arithmetic number, because the mean of its divisors is an integer number (176613930).
Almost surely, 22563957231 is an apocalyptic number.
2563957231 is a deficient number, since it is larger than the sum of its proper divisors (261865649).
2563957231 is a wasteful number, since it uses less digits than its factorization.
2563957231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3066.
The product of its digits is 340200, while the sum is 43.
The square root of 2563957231 is about 50635.5332844436. The cubic root of 2563957231 is about 1368.6852663143.
The spelling of 2563957231 in words is "two billion, five hundred sixty-three million, nine hundred fifty-seven thousand, two hundred thirty-one".
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