Base | Representation |
---|---|
bin | 11100100010101001… |
… | …011100011110001100 |
3 | 2221002202222012101002 |
4 | 130202221130132030 |
5 | 1000230342422230 |
6 | 22024551235432 |
7 | 2133303135305 |
oct | 344251343614 |
9 | 87082865332 |
10 | 30646060940 |
11 | 11aa69a21a0 |
12 | 5b33378b78 |
13 | 2b7519a191 |
14 | 16aa1817ac |
15 | be56e4545 |
hex | 722a5c78c |
30646060940 has 48 divisors (see below), whose sum is σ = 70219505664. Its totient is φ = 11142091200.
The previous prime is 30646060919. The next prime is 30646060969. The reversal of 30646060940 is 4906064603.
It is a happy number.
It is a super-2 number, since 2×306460609402 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30646060894 and 30646060903.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2093045 + ... + 2107635.
It is an arithmetic number, because the mean of its divisors is an integer number (1462906368).
Almost surely, 230646060940 is an apocalyptic number.
It is an amenable number.
30646060940 is an abundant number, since it is smaller than the sum of its proper divisors (39573444724).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30646060940 is a wasteful number, since it uses less digits than its factorization.
30646060940 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24158 (or 24156 counting only the distinct ones).
The product of its (nonzero) digits is 93312, while the sum is 38.
The spelling of 30646060940 in words is "thirty billion, six hundred forty-six million, sixty thousand, nine hundred forty".
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