Base | Representation |
---|---|
bin | 1101101101111110… |
… | …01111001100100000 |
3 | 201000021112122210202 |
4 | 12312333033030200 |
5 | 110040414413140 |
6 | 3214453244332 |
7 | 350340310100 |
oct | 66677171440 |
9 | 21007478722 |
10 | 7364997920 |
11 | 313a392a45 |
12 | 15166336a8 |
13 | 904b10847 |
14 | 4dc20d200 |
15 | 2d18b6915 |
hex | 1b6fcf320 |
7364997920 has 72 divisors (see below), whose sum is σ = 20240614044. Its totient is φ = 2525139456.
The previous prime is 7364997883. The next prime is 7364997943. The reversal of 7364997920 is 297994637.
It can be written as a sum of positive squares in 2 ways, for example, as 7060704784 + 304293136 = 84028^2 + 17444^2 .
It is a Harshad number since it is a multiple of its sum of digits (56).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461867 + ... + 477546.
Almost surely, 27364997920 is an apocalyptic number.
7364997920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
7364997920 is an abundant number, since it is smaller than the sum of its proper divisors (12875616124).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7364997920 is a wasteful number, since it uses less digits than its factorization.
7364997920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 939442 (or 939427 counting only the distinct ones).
The product of its (nonzero) digits is 5143824, while the sum is 56.
The square root of 7364997920 is about 85819.5660674184. The cubic root of 7364997920 is about 1945.6178536394.
The spelling of 7364997920 in words is "seven billion, three hundred sixty-four million, nine hundred ninety-seven thousand, nine hundred twenty".
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