Base | Representation |
---|---|
bin | 101000101010010010… |
… | …0001010111111010101 |
3 | 22100101100102210111220 |
4 | 1101110210022333111 |
5 | 2412311414124021 |
6 | 104040254120553 |
7 | 6210552503460 |
oct | 1212444127725 |
9 | 270340383456 |
10 | 87318114261 |
11 | 340388876a4 |
12 | 14b0a7b0159 |
13 | 830730b841 |
14 | 4324a622d7 |
15 | 2410bc3cc6 |
hex | 145490afd5 |
87318114261 has 32 divisors (see below), whose sum is σ = 133875456000. Its totient is φ = 49589616960.
The previous prime is 87318114251. The next prime is 87318114269. The reversal of 87318114261 is 16241181378.
It is not a de Polignac number, because 87318114261 - 25 = 87318114229 is a prime.
It is a super-2 number, since 2×873181142612 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87318114269) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2730040 + ... + 2761838.
It is an arithmetic number, because the mean of its divisors is an integer number (4183608000).
Almost surely, 287318114261 is an apocalyptic number.
It is an amenable number.
87318114261 is a deficient number, since it is larger than the sum of its proper divisors (46557341739).
87318114261 is a wasteful number, since it uses less digits than its factorization.
87318114261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32609.
The product of its digits is 64512, while the sum is 42.
The spelling of 87318114261 in words is "eighty-seven billion, three hundred eighteen million, one hundred fourteen thousand, two hundred sixty-one".
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