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12490628 = 223122657
BaseRepresentation
bin101111101001…
…011110000100
3212111120220212
4233221132010
511144200003
61123414552
7211111553
oct57513604
925446825
1012490628
117061437
124224458
132784407
141931d9a
15116add8
hexbe9784

12490628 has 6 divisors (see below), whose sum is σ = 21858606. Its totient is φ = 6245312.

The previous prime is 12490627. The next prime is 12490663. The reversal of 12490628 is 82609421.

It can be written as a sum of positive squares in only one way, i.e., 8773444 + 3717184 = 2962^2 + 1928^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12490594 and 12490603.

It is not an unprimeable number, because it can be changed into a prime (12490627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561325 + ... + 1561332.

It is an arithmetic number, because the mean of its divisors is an integer number (3643101).

Almost surely, 212490628 is an apocalyptic number.

It is an amenable number.

12490628 is a deficient number, since it is larger than the sum of its proper divisors (9367978).

12490628 is a wasteful number, since it uses less digits than its factorization.

12490628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122661 (or 3122659 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 12490628 is about 3534.2082564558. The cubic root of 12490628 is about 232.0214258848.

The spelling of 12490628 in words is "twelve million, four hundred ninety thousand, six hundred twenty-eight".

Divisors: 1 2 4 3122657 6245314 12490628