Base | Representation |
---|---|
bin | 1011010010010010101101… |
… | …1111110100110000001001 |
3 | 1121221021111220021112120210 |
4 | 2310210223133310300021 |
5 | 3111301401402442334 |
6 | 42220322051511333 |
7 | 2420340604033020 |
oct | 264445337646011 |
9 | 47837456245523 |
10 | 12408890280969 |
11 | 3a54643078946 |
12 | 1484b142b8549 |
13 | 6c01cbb439c0 |
14 | 30c8447958b7 |
15 | 167bb50715e9 |
hex | b492b7f4c09 |
12408890280969 has 64 divisors (see below), whose sum is σ = 20386385768448. Its totient is φ = 6537935174400.
The previous prime is 12408890280947. The next prime is 12408890281079. The reversal of 12408890280969 is 96908209880421.
It is a happy number.
12408890280969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12408890280969 - 215 = 12408890248201 is a prime.
It is a super-2 number, since 2×124088902809692 (a number of 27 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12408890280929) 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, 1039177539 + ... + 1039189479.
It is an arithmetic number, because the mean of its divisors is an integer number (318537277632).
Almost surely, 212408890280969 is an apocalyptic number.
It is an amenable number.
12408890280969 is a deficient number, since it is larger than the sum of its proper divisors (7977495487479).
12408890280969 is a wasteful number, since it uses less digits than its factorization.
12408890280969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15958.
The product of its (nonzero) digits is 35831808, while the sum is 66.
The spelling of 12408890280969 in words is "twelve trillion, four hundred eight billion, eight hundred ninety million, two hundred eighty thousand, nine hundred sixty-nine".
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