Base | Representation |
---|---|
bin | 100010111111000111… |
… | …0111100011110101100 |
3 | 21011221002122211120000 |
4 | 1011332032330132230 |
5 | 2212332331302423 |
6 | 54303145424300 |
7 | 5266563636066 |
oct | 1057616743654 |
9 | 234832584500 |
10 | 75132290988 |
11 | 29955246277 |
12 | 1268979b090 |
13 | 7114814721 |
14 | 38ca4b2736 |
15 | 1e4ae99843 |
hex | 117e3bc7ac |
75132290988 has 120 divisors (see below), whose sum is σ = 200349637488. Its totient is φ = 24542953344.
The previous prime is 75132290977. The next prime is 75132291011. The reversal of 75132290988 is 88909223157.
It is a super-2 number, since 2×751322909882 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18766995 + ... + 18770997.
Almost surely, 275132290988 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 75132290988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100174818744).
75132290988 is an abundant number, since it is smaller than the sum of its proper divisors (125217346500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
75132290988 is a wasteful number, since it uses less digits than its factorization.
75132290988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5165 (or 5154 counting only the distinct ones).
The product of its (nonzero) digits is 2177280, while the sum is 54.
The spelling of 75132290988 in words is "seventy-five billion, one hundred thirty-two million, two hundred ninety thousand, nine hundred eighty-eight".
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