Base | Representation |
---|---|
bin | 10010101011101100… |
… | …00110000111011101 |
3 | 221220000112212122000 |
4 | 21111312012013131 |
5 | 131020211210111 |
6 | 4335141312513 |
7 | 503362053510 |
oct | 112566060735 |
9 | 27800485560 |
10 | 10030178781 |
11 | 4287857857 |
12 | 1b3b105739 |
13 | c3b02593c |
14 | 6b217ad77 |
15 | 3da86ec56 |
hex | 255d861dd |
10030178781 has 64 divisors (see below), whose sum is σ = 17512296960. Its totient is φ = 5553930240.
The previous prime is 10030178779. The next prime is 10030178783. The reversal of 10030178781 is 18787103001.
It is an interprime number because it is at equal distance from previous prime (10030178779) and next prime (10030178783).
It is not a de Polignac number, because 10030178781 - 21 = 10030178779 is a prime.
It is a super-2 number, since 2×100301787812 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10030178783) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1794411 + ... + 1799991.
It is an arithmetic number, because the mean of its divisors is an integer number (273629640).
Almost surely, 210030178781 is an apocalyptic number.
It is an amenable number.
10030178781 is a deficient number, since it is larger than the sum of its proper divisors (7482118179).
10030178781 is a wasteful number, since it uses less digits than its factorization.
10030178781 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5891 (or 5885 counting only the distinct ones).
The product of its (nonzero) digits is 9408, while the sum is 36.
The spelling of 10030178781 in words is "ten billion, thirty million, one hundred seventy-eight thousand, seven hundred eighty-one".
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