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15042252 = 2231253521
BaseRepresentation
bin111001011000…
…011011001100
31001022020002110
4321120123030
512322323002
61254224020
7241566651
oct71303314
931266073
1015042252
118544515
125055010
133168954
141dd7c28
1514c1e6c
hexe586cc

15042252 has 12 divisors (see below), whose sum is σ = 35098616. Its totient is φ = 5014080.

The previous prime is 15042197. The next prime is 15042257. The reversal of 15042252 is 25224051.

It is a happy number.

15042252 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (15042257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626749 + ... + 626772.

Almost surely, 215042252 is an apocalyptic number.

15042252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15042252 is an abundant number, since it is smaller than the sum of its proper divisors (20056364).

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

15042252 is a wasteful number, since it uses less digits than its factorization.

15042252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253528 (or 1253526 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 15042252 is about 3878.4342201461. The cubic root of 15042252 is about 246.8525512248.

The spelling of 15042252 in words is "fifteen million, forty-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 1253521 2507042 3760563 5014084 7521126 15042252