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12525090 = 2351741599
BaseRepresentation
bin101111110001…
…111000100010
3212120100012020
4233301320202
511201300330
61124242310
7211314204
oct57617042
925510166
1012525090
117085316
124240396
132796cc6
141940774
151176210
hexbf1e22

12525090 has 64 divisors (see below), whose sum is σ = 32659200. Its totient is φ = 3061760.

The previous prime is 12525067. The next prime is 12525101. The reversal of 12525090 is 9052521.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12525090.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 20611 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (510300).

Almost surely, 212525090 is an apocalyptic number.

12525090 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 12525090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16329600).

12525090 is an abundant number, since it is smaller than the sum of its proper divisors (20134110).

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

12525090 is a wasteful number, since it uses less digits than its factorization.

12525090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 12525090 is about 3539.0803890276. The cubic root of 12525090 is about 232.2346145244.

The spelling of 12525090 in words is "twelve million, five hundred twenty-five thousand, ninety".

Divisors: 1 2 3 5 6 10 15 17 30 34 41 51 82 85 102 123 170 205 246 255 410 510 599 615 697 1198 1230 1394 1797 2091 2995 3485 3594 4182 5990 6970 8985 10183 10455 17970 20366 20910 24559 30549 49118 50915 61098 73677 101830 122795 147354 152745 245590 305490 368385 417503 736770 835006 1252509 2087515 2505018 4175030 6262545 12525090