Base | Representation |
---|---|
bin | 1010011000010… |
… | …01000101101100 |
3 | 20001211120021010 |
4 | 11030021011230 |
5 | 134242202121 |
6 | 12350105220 |
7 | 2105034405 |
oct | 514110554 |
9 | 201746233 |
10 | 87069036 |
11 | 4516a28a |
12 | 251ab210 |
13 | 15066b52 |
14 | b7c69ac |
15 | 799d376 |
hex | 530916c |
87069036 has 48 divisors (see below), whose sum is σ = 219197664. Its totient is φ = 26797056.
The previous prime is 87068977. The next prime is 87069079. The reversal of 87069036 is 63096078.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 87068985 and 87069003.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6786 + ... + 14838.
It is an arithmetic number, because the mean of its divisors is an integer number (4566618).
Almost surely, 287069036 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87069036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109598832).
87069036 is an abundant number, since it is smaller than the sum of its proper divisors (132128628).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87069036 is a wasteful number, since it uses less digits than its factorization.
87069036 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8130 (or 8128 counting only the distinct ones).
The product of its (nonzero) digits is 54432, while the sum is 39.
The square root of 87069036 is about 9331.0790372818. The cubic root of 87069036 is about 443.2219349381.
The spelling of 87069036 in words is "eighty-seven million, sixty-nine thousand, thirty-six".
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