Base | Representation |
---|---|
bin | 1010011111001… |
… | …10010111100100 |
3 | 20010112121120000 |
4 | 11033212113210 |
5 | 140010203041 |
6 | 12421341300 |
7 | 2115531015 |
oct | 517462744 |
9 | 203477500 |
10 | 87975396 |
11 | 45729243 |
12 | 25567830 |
13 | 152c3562 |
14 | b98100c |
15 | 7acbbb6 |
hex | 53e65e4 |
87975396 has 120 divisors (see below), whose sum is σ = 250440960. Its totient is φ = 26827200.
The previous prime is 87975367. The next prime is 87975397. The reversal of 87975396 is 69357978.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (87975397) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 190606 + ... + 191066.
It is an arithmetic number, because the mean of its divisors is an integer number (2087008).
Almost surely, 287975396 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 87975396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125220480).
87975396 is an abundant number, since it is smaller than the sum of its proper divisors (162465564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87975396 is a wasteful number, since it uses less digits than its factorization.
87975396 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 527 (or 516 counting only the distinct ones).
The product of its digits is 2857680, while the sum is 54.
The square root of 87975396 is about 9379.5200303640. The cubic root of 87975396 is about 444.7545606089.
The spelling of 87975396 in words is "eighty-seven million, nine hundred seventy-five thousand, three hundred ninety-six".
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