Base | Representation |
---|---|
bin | 1010011100110… |
… | …11000110100000 |
3 | 20002221221122210 |
4 | 11032123012200 |
5 | 134420321404 |
6 | 12411002120 |
7 | 2113105140 |
oct | 516330640 |
9 | 202857583 |
10 | 87667104 |
11 | 45538658 |
12 | 25439340 |
13 | 15216135 |
14 | b900920 |
15 | 7a6a689 |
hex | 539b1a0 |
87667104 has 48 divisors (see below), whose sum is σ = 263003328. Its totient is φ = 25047552.
The previous prime is 87667093. The next prime is 87667109. The reversal of 87667104 is 40176678.
It is a tau number, because it is divible by the number of its divisors (48).
It is a super-2 number, since 2×876671042 = 15371042247493632, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (87667109) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64557 + ... + 65900.
It is an arithmetic number, because the mean of its divisors is an integer number (5479236).
Almost surely, 287667104 is an apocalyptic number.
87667104 is a gapful number since it is divisible by the number (84) formed by its first and last digit.
It is an amenable number.
87667104 is an abundant number, since it is smaller than the sum of its proper divisors (175336224).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87667104 is a wasteful number, since it uses less digits than its factorization.
87667104 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130477 (or 130469 counting only the distinct ones).
The product of its (nonzero) digits is 56448, while the sum is 39.
The square root of 87667104 is about 9363.0712909814. The cubic root of 87667104 is about 444.2344350781.
The spelling of 87667104 in words is "eighty-seven million, six hundred sixty-seven thousand, one hundred four".
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