Base | Representation |
---|---|
bin | 1010011110011… |
… | …10000111001101 |
3 | 20010100120021100 |
4 | 11033032013031 |
5 | 134444013140 |
6 | 12415253313 |
7 | 2114635245 |
oct | 517160715 |
9 | 203316240 |
10 | 87876045 |
11 | 45670634 |
12 | 2551a239 |
13 | 1528a27a |
14 | b956b25 |
15 | 7aac530 |
hex | 53ce1cd |
87876045 has 48 divisors (see below), whose sum is σ = 162489600. Its totient is φ = 43804800.
The previous prime is 87876037. The next prime is 87876053. The reversal of 87876045 is 54067878.
It is an interprime number because it is at equal distance from previous prime (87876037) and next prime (87876053).
It is not a de Polignac number, because 87876045 - 23 = 87876037 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66895 + ... + 68195.
It is an arithmetic number, because the mean of its divisors is an integer number (3385200).
Almost surely, 287876045 is an apocalyptic number.
It is an amenable number.
87876045 is a deficient number, since it is larger than the sum of its proper divisors (74613555).
87876045 is a wasteful number, since it uses less digits than its factorization.
87876045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1410 (or 1407 counting only the distinct ones).
The product of its (nonzero) digits is 376320, while the sum is 45.
The square root of 87876045 is about 9374.2223677487. Note that the first 3 decimals coincide. The cubic root of 87876045 is about 444.5870764551.
The spelling of 87876045 in words is "eighty-seven million, eight hundred seventy-six thousand, forty-five".
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