Base | Representation |
---|---|
bin | 1011011100001… |
… | …0001001100000 |
3 | 10100021200202201 |
4 | 2313002021200 |
5 | 44240344102 |
6 | 4432222544 |
7 | 1121555512 |
oct | 267021140 |
9 | 110250681 |
10 | 47981152 |
11 | 250a1a4a |
12 | 1409aa54 |
13 | 9c2c51b |
14 | 652dbb2 |
15 | 432b987 |
hex | 2dc2260 |
47981152 has 24 divisors (see below), whose sum is σ = 96769512. Its totient is φ = 23404800.
The previous prime is 47981107. The next prime is 47981183. The reversal of 47981152 is 25118974.
It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16974 + ... + 19597.
It is an arithmetic number, because the mean of its divisors is an integer number (4032063).
Almost surely, 247981152 is an apocalyptic number.
It is an amenable number.
47981152 is an abundant number, since it is smaller than the sum of its proper divisors (48788360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47981152 is a wasteful number, since it uses less digits than its factorization.
47981152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36622 (or 36614 counting only the distinct ones).
The product of its digits is 20160, while the sum is 37.
The square root of 47981152 is about 6926.8428594851. The cubic root of 47981152 is about 363.3765441598.
The spelling of 47981152 in words is "forty-seven million, nine hundred eighty-one thousand, one hundred fifty-two".
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