Base | Representation |
---|---|
bin | 101111101001… |
… | …011110100100 |
3 | 212111120222001 |
4 | 233221132210 |
5 | 11144200120 |
6 | 1123415044 |
7 | 211111630 |
oct | 57513644 |
9 | 25446861 |
10 | 12490660 |
11 | 7061466 |
12 | 4224484 |
13 | 2784430 |
14 | 1931dc0 |
15 | 116ae0a |
hex | be97a4 |
12490660 has 48 divisors (see below), whose sum is σ = 32288256. Its totient is φ = 3952512.
The previous prime is 12490627. The next prime is 12490663. The reversal of 12490660 is 6609421.
It is a Harshad number since it is a multiple of its sum of digits (28).
It is not an unprimeable number, because it can be changed into a prime (12490663) 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, 1612 + ... + 5251.
It is an arithmetic number, because the mean of its divisors is an integer number (672672).
Almost surely, 212490660 is an apocalyptic number.
12490660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12490660 is an abundant number, since it is smaller than the sum of its proper divisors (19797596).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12490660 is a wasteful number, since it uses less digits than its factorization.
12490660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6892 (or 6890 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 12490660 is about 3534.2127836337. The cubic root of 12490660 is about 232.0216240249.
The spelling of 12490660 in words is "twelve million, four hundred ninety thousand, six hundred sixty".
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