Base | Representation |
---|---|
bin | 1011011010111… |
… | …0010110011101 |
3 | 10100010120112100 |
4 | 2312232112131 |
5 | 44230300221 |
6 | 4430355313 |
7 | 1121100216 |
oct | 266562635 |
9 | 110116470 |
10 | 47900061 |
11 | 25047030 |
12 | 1405bb39 |
13 | 9c01641 |
14 | 650c40d |
15 | 4312926 |
hex | 2dae59d |
47900061 has 12 divisors (see below), whose sum is σ = 75479040. Its totient is φ = 29030280.
The previous prime is 47900059. The next prime is 47900071. The reversal of 47900061 is 16000974.
It is not a de Polignac number, because 47900061 - 21 = 47900059 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 47899998 and 47900034.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47900051) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241821 + ... + 242018.
It is an arithmetic number, because the mean of its divisors is an integer number (6289920).
Almost surely, 247900061 is an apocalyptic number.
It is an amenable number.
47900061 is a deficient number, since it is larger than the sum of its proper divisors (27578979).
47900061 is a wasteful number, since it uses less digits than its factorization.
47900061 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 483856 (or 483853 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 47900061 is about 6920.9869960866. The cubic root of 47900061 is about 363.1717194054.
The spelling of 47900061 in words is "forty-seven million, nine hundred thousand, sixty-one".
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