Base | Representation |
---|---|
bin | 1010011001000… |
… | …01010000100001 |
3 | 20002000121001200 |
4 | 11030201100201 |
5 | 134303334113 |
6 | 12352151413 |
7 | 2105626131 |
oct | 514412041 |
9 | 202017050 |
10 | 87168033 |
11 | 452276a7 |
12 | 25238569 |
13 | 1509cc24 |
14 | b810ac1 |
15 | 79bc873 |
hex | 5321421 |
87168033 has 24 divisors (see below), whose sum is σ = 129257856. Its totient is φ = 56580000.
The previous prime is 87168023. The next prime is 87168043. The reversal of 87168033 is 33086178.
It is an interprime number because it is at equal distance from previous prime (87168023) and next prime (87168043).
It is not a de Polignac number, because 87168033 - 213 = 87159841 is a prime.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (87168023) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105763 + ... + 106583.
It is an arithmetic number, because the mean of its divisors is an integer number (5385744).
Almost surely, 287168033 is an apocalyptic number.
It is an amenable number.
87168033 is a deficient number, since it is larger than the sum of its proper divisors (42089823).
87168033 is a wasteful number, since it uses less digits than its factorization.
87168033 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1125 (or 1122 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 36.
The square root of 87168033 is about 9336.3822222529. The cubic root of 87168033 is about 443.3898515893.
The spelling of 87168033 in words is "eighty-seven million, one hundred sixty-eight thousand, thirty-three".
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