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12490068 = 22319291889
BaseRepresentation
bin101111101001…
…010101010100
3212111120011010
4233221111110
511144140233
61123412220
7211110123
oct57512524
925446133
1012490068
117060a78
124224070
132784096
141931aba
15116ab63
hexbe9554

12490068 has 48 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 3806208.

The previous prime is 12490061. The next prime is 12490091. The reversal of 12490068 is 86009421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490061) 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 in 15 ways as a sum of consecutive naturals, for example, 5668 + ... + 7556.

It is an arithmetic number, because the mean of its divisors is an integer number (661500).

Almost surely, 212490068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12490068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15876000).

12490068 is an abundant number, since it is smaller than the sum of its proper divisors (19261932).

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

12490068 is a wasteful number, since it uses less digits than its factorization.

12490068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 1942 counting only the distinct ones).

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

The square root of 12490068 is about 3534.1290299026. The cubic root of 12490068 is about 232.0179583800.

Adding to 12490068 its reverse (86009421), we get a palindrome (98499489).

The spelling of 12490068 in words is "twelve million, four hundred ninety thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 19 29 38 57 58 76 87 114 116 174 228 348 551 1102 1653 1889 2204 3306 3778 5667 6612 7556 11334 22668 35891 54781 71782 107673 109562 143564 164343 215346 219124 328686 430692 657372 1040839 2081678 3122517 4163356 6245034 12490068