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15085212 = 2234130661
BaseRepresentation
bin111001100010…
…111010011100
31001101102000120
4321202322130
512330211322
61255154540
7242136132
oct71427234
931342016
1015085212
11857381a
125075a50
13318237c
142009752
1514cea5c
hexe62e9c

15085212 has 24 divisors (see below), whose sum is σ = 36058512. Its totient is φ = 4905600.

The previous prime is 15085211. The next prime is 15085229. The reversal of 15085212 is 21258051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15085211) 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 7 ways as a sum of consecutive naturals, for example, 14839 + ... + 15822.

It is an arithmetic number, because the mean of its divisors is an integer number (1502438).

Almost surely, 215085212 is an apocalyptic number.

15085212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15085212 is an abundant number, since it is smaller than the sum of its proper divisors (20973300).

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

15085212 is a wasteful number, since it uses less digits than its factorization.

15085212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30709 (or 30707 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 15085212 is about 3883.9685889564. The cubic root of 15085212 is about 247.0873278170.

The spelling of 15085212 in words is "fifteen million, eighty-five thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 30661 61322 91983 122644 183966 367932 1257101 2514202 3771303 5028404 7542606 15085212