Base | Representation |
---|---|
bin | 10011110001110111… |
… | …11010110100001000 |
3 | 1000102001100102011122 |
4 | 21320323322310020 |
5 | 133221420023122 |
6 | 4513412014412 |
7 | 524101141124 |
oct | 117073726410 |
9 | 30361312148 |
10 | 10618907912 |
11 | 455a107758 |
12 | 2084301408 |
13 | 1002ca6382 |
14 | 72a42c584 |
15 | 4223b3142 |
hex | 278efad08 |
10618907912 has 12 divisors (see below), whose sum is σ = 19910998845. Its totient is φ = 5309308224.
The previous prime is 10618907861. The next prime is 10618907951. The reversal of 10618907912 is 21970981601.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 8709742276 + 1909165636 = 93326^2 + 43694^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=72866.
It is a super-2 number, since 2×106189079122 (a number of 21 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 273248 + ... + 309680.
Almost surely, 210618907912 is an apocalyptic number.
It is an amenable number.
10618907912 is a deficient number, since it is larger than the sum of its proper divisors (9292090933).
10618907912 is an frugal number, since it uses more digits than its factorization.
10618907912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72872 (or 36435 counting only the distinct ones).
The product of its (nonzero) digits is 54432, while the sum is 44.
The spelling of 10618907912 in words is "ten billion, six hundred eighteen million, nine hundred seven thousand, nine hundred twelve".
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