Base | Representation |
---|---|
bin | 1010011111000… |
… | …01101001001011 |
3 | 20010111122000020 |
4 | 11033201221023 |
5 | 140004043133 |
6 | 12421111523 |
7 | 2115420420 |
oct | 517415113 |
9 | 203448006 |
10 | 87956043 |
11 | 4571574a |
12 | 255585a3 |
13 | 152b77c6 |
14 | b977d47 |
15 | 7ac60b3 |
hex | 53e1a4b |
87956043 has 16 divisors (see below), whose sum is σ = 138650880. Its totient is φ = 48527136.
The previous prime is 87956039. The next prime is 87956047. The reversal of 87956043 is 34065978.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (87956039) and next prime (87956047).
It is not a de Polignac number, because 87956043 - 22 = 87956039 is a prime.
87956043 is a modest number, since divided by 956043 gives 87 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 87955986 and 87956004.
It is not an unprimeable number, because it can be changed into a prime (87956047) 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, 71605 + ... + 72822.
It is an arithmetic number, because the mean of its divisors is an integer number (8665680).
Almost surely, 287956043 is an apocalyptic number.
87956043 is a deficient number, since it is larger than the sum of its proper divisors (50694837).
87956043 is a wasteful number, since it uses less digits than its factorization.
87956043 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 144466.
The product of its (nonzero) digits is 181440, while the sum is 42.
The square root of 87956043 is about 9378.4883110233. The cubic root of 87956043 is about 444.7219455573.
The spelling of 87956043 in words is "eighty-seven million, nine hundred fifty-six thousand, forty-three".
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