Base | Representation |
---|---|
bin | 1101110001001011… |
… | …11100000000100100 |
3 | 201002011012110011220 |
4 | 12320211330000210 |
5 | 110114312421124 |
6 | 3221254300340 |
7 | 351115166436 |
oct | 67045740044 |
9 | 21064173156 |
10 | 7391920164 |
11 | 3153601032 |
12 | 15236576b0 |
13 | 90a578975 |
14 | 501a1a656 |
15 | 2d3e33879 |
hex | 1b897c024 |
7391920164 has 24 divisors (see below), whose sum is σ = 17252249280. Its totient is φ = 2463339744.
The previous prime is 7391920141. The next prime is 7391920169. The reversal of 7391920164 is 4610291937.
It is not an unprimeable number, because it can be changed into a prime (7391920169) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29344 + ... + 125079.
It is an arithmetic number, because the mean of its divisors is an integer number (718843720).
Almost surely, 27391920164 is an apocalyptic number.
It is an amenable number.
7391920164 is an abundant number, since it is smaller than the sum of its proper divisors (9860329116).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7391920164 is a wasteful number, since it uses less digits than its factorization.
7391920164 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 158419 (or 158417 counting only the distinct ones).
The product of its (nonzero) digits is 81648, while the sum is 42.
The square root of 7391920164 is about 85976.2767512062. The cubic root of 7391920164 is about 1947.9856616659.
The spelling of 7391920164 in words is "seven billion, three hundred ninety-one million, nine hundred twenty thousand, one hundred sixty-four".
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