Base | Representation |
---|---|
bin | 10101111011111… |
… | …001000101010000 |
3 | 221122111110001112 |
4 | 111323321011100 |
5 | 1223203144330 |
6 | 100303552452 |
7 | 12056063654 |
oct | 2573710520 |
9 | 848443045 |
10 | 368021840 |
11 | 17981428a |
12 | a32bb728 |
13 | 5b326104 |
14 | 36c3ca64 |
15 | 22498795 |
hex | 15ef9150 |
368021840 has 40 divisors (see below), whose sum is σ = 857275488. Its totient is φ = 146929280.
The previous prime is 368021833. The next prime is 368021851. The reversal of 368021840 is 48120863.
It is a tau number, because it is divible by the number of its divisors (40).
It is a junction number, because it is equal to n+sod(n) for n = 368021797 and 368021806.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40955 + ... + 49125.
Almost surely, 2368021840 is an apocalyptic number.
It is an amenable number.
368021840 is an abundant number, since it is smaller than the sum of its proper divisors (489253648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
368021840 is a wasteful number, since it uses less digits than its factorization.
368021840 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8747 (or 8741 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 32.
The square root of 368021840 is about 19183.8953291557. The cubic root of 368021840 is about 716.6237503295.
The spelling of 368021840 in words is "three hundred sixty-eight million, twenty-one thousand, eight hundred forty".
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