Base | Representation |
---|---|
bin | 1010010111110… |
… | …10000110011010 |
3 | 20001201110001021 |
4 | 11023322012122 |
5 | 134233221032 |
6 | 12344513054 |
7 | 2104360411 |
oct | 513720632 |
9 | 201643037 |
10 | 87007642 |
11 | 45128147 |
12 | 2517b78a |
13 | 15044c17 |
14 | b7ac478 |
15 | 798a097 |
hex | 52fa19a |
87007642 has 16 divisors (see below), whose sum is σ = 132314112. Its totient is φ = 42906240.
The previous prime is 87007633. The next prime is 87007651. The reversal of 87007642 is 24670078.
It is an interprime number because it is at equal distance from previous prime (87007633) and next prime (87007651).
It is a junction number, because it is equal to n+sod(n) for n = 87007598 and 87007607.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73717 + ... + 74887.
It is an arithmetic number, because the mean of its divisors is an integer number (8269632).
Almost surely, 287007642 is an apocalyptic number.
87007642 is a deficient number, since it is larger than the sum of its proper divisors (45306470).
87007642 is a wasteful number, since it uses less digits than its factorization.
87007642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1653.
The product of its (nonzero) digits is 18816, while the sum is 34.
The square root of 87007642 is about 9327.7886982929. The cubic root of 87007642 is about 443.1177357611.
The spelling of 87007642 in words is "eighty-seven million, seven thousand, six hundred forty-two".
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