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12608490 = 235372307
BaseRepresentation
bin110000000110…
…001111101010
3212201120121010
4300012033222
511211432430
61130124350
7212112306
oct60061752
925646533
1012608490
117131a44
1242806b6
1327c5c5b
141962d06
151190cb0
hexc063ea

12608490 has 48 divisors (see below), whose sum is σ = 31201632. Its totient is φ = 3260736.

The previous prime is 12608489. The next prime is 12608501. The reversal of 12608490 is 9480621.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40917 + ... + 41223.

It is an arithmetic number, because the mean of its divisors is an integer number (650034).

Almost surely, 212608490 is an apocalyptic number.

12608490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12608490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15600816).

12608490 is an abundant number, since it is smaller than the sum of its proper divisors (18593142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12608490 is a wasteful number, since it uses less digits than its factorization.

12608490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 12608490 is about 3550.8435617470. The cubic root of 12608490 is about 232.7489298231.

The spelling of 12608490 in words is "twelve million, six hundred eight thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 307 370 555 614 921 1110 1369 1535 1842 2738 3070 4107 4605 6845 8214 9210 11359 13690 20535 22718 34077 41070 56795 68154 113590 170385 340770 420283 840566 1260849 2101415 2521698 4202830 6304245 12608490