Base | Representation |
---|---|
bin | 1011010011001… |
… | …1110001001000 |
3 | 10022012001210000 |
4 | 2310303301020 |
5 | 44113213320 |
6 | 4411523000 |
7 | 1113606321 |
oct | 264636110 |
9 | 108161700 |
10 | 47397960 |
11 | 24833875 |
12 | 13a59460 |
13 | 9a86c3c |
14 | 641b448 |
15 | 4263c90 |
hex | 2d33c48 |
47397960 has 80 divisors (see below), whose sum is σ = 159320700. Its totient is φ = 12638592.
The previous prime is 47397941. The next prime is 47397971. The reversal of 47397960 is 6979374.
47397960 is a `hidden beast` number, since 473 + 97 + 96 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 44595684 + 2802276 = 6678^2 + 1674^2 .
It is a super-2 number, since 2×473979602 = 4493133224323200, which contains 22 as substring.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4075 + ... + 10554.
Almost surely, 247397960 is an apocalyptic number.
47397960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
47397960 is an abundant number, since it is smaller than the sum of its proper divisors (111922740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47397960 is a wasteful number, since it uses less digits than its factorization.
47397960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14652 (or 14639 counting only the distinct ones).
The product of its (nonzero) digits is 285768, while the sum is 45.
The square root of 47397960 is about 6884.6176364414. The cubic root of 47397960 is about 361.8983058361.
The spelling of 47397960 in words is "forty-seven million, three hundred ninety-seven thousand, nine hundred sixty".
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