Base | Representation |
---|---|
bin | 101100001110110010… |
… | …110011001111100100 |
3 | 11112120212011011102210 |
4 | 230032302303033210 |
5 | 1234231131311442 |
6 | 33452400203420 |
7 | 3300626315430 |
oct | 541662631744 |
9 | 145525134383 |
10 | 47492838372 |
11 | 19161518451 |
12 | 9255309570 |
13 | 462b503935 |
14 | 24277779c0 |
15 | 137e70219c |
hex | b0ecb33e4 |
47492838372 has 24 divisors (see below), whose sum is σ = 126647569216. Its totient is φ = 13569382368.
The previous prime is 47492838361. The next prime is 47492838377. The reversal of 47492838372 is 27383829474.
It is a happy number.
It is a super-2 number, since 2×474928383722 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (47492838377) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 282695383 + ... + 282695550.
Almost surely, 247492838372 is an apocalyptic number.
47492838372 is a gapful number since it is divisible by the number (42) formed by its first and last digit.
It is an amenable number.
47492838372 is an abundant number, since it is smaller than the sum of its proper divisors (79154730844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47492838372 is a wasteful number, since it uses less digits than its factorization.
47492838372 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 565390947 (or 565390945 counting only the distinct ones).
The product of its digits is 16257024, while the sum is 57.
The spelling of 47492838372 in words is "forty-seven billion, four hundred ninety-two million, eight hundred thirty-eight thousand, three hundred seventy-two".
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