Base | Representation |
---|---|
bin | 110000100111… |
… | …000000100010 |
3 | 212222101200111 |
4 | 300213000202 |
5 | 11230231230 |
6 | 1133041534 |
7 | 213211462 |
oct | 60470042 |
9 | 25871614 |
10 | 12742690 |
11 | 7213854 |
12 | 43262aa |
13 | 284206c |
14 | 1999ba2 |
15 | 11ba92a |
hex | c27022 |
12742690 has 32 divisors (see below), whose sum is σ = 25349760. Its totient is φ = 4587264.
The previous prime is 12742679. The next prime is 12742693. The reversal of 12742690 is 9624721.
It is a super-2 number, since 2×127426902 = 324752296872200, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12742693) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2281 + ... + 5539.
It is an arithmetic number, because the mean of its divisors is an integer number (792180).
Almost surely, 212742690 is an apocalyptic number.
12742690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12742690 is a deficient number, since it is larger than the sum of its proper divisors (12607070).
12742690 is a wasteful number, since it uses less digits than its factorization.
12742690 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3306.
The product of its (nonzero) digits is 6048, while the sum is 31.
The square root of 12742690 is about 3569.6904627712. The cubic root of 12742690 is about 233.5717811858.
The spelling of 12742690 in words is "twelve million, seven hundred forty-two thousand, six hundred ninety".
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