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13457142 = 232747619
BaseRepresentation
bin110011010101…
…011011110110
3221022200201200
4303111123312
511421112032
61200233330
7222245436
oct63253366
927280650
1013457142
117661606
12460b846
132a3230a
141b042c6
1512ac47c
hexcd56f6

13457142 has 12 divisors (see below), whose sum is σ = 29157180. Its totient is φ = 4485708.

The previous prime is 13457137. The next prime is 13457161. The reversal of 13457142 is 24175431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373792 + ... + 373827.

It is an arithmetic number, because the mean of its divisors is an integer number (2429765).

Almost surely, 213457142 is an apocalyptic number.

13457142 is an abundant number, since it is smaller than the sum of its proper divisors (15700038).

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

13457142 is a wasteful number, since it uses less digits than its factorization.

13457142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747627 (or 747624 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 13457142 is about 3668.3977428845. The cubic root of 13457142 is about 237.8579172197.

The spelling of 13457142 in words is "thirteen million, four hundred fifty-seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 747619 1495238 2242857 4485714 6728571 13457142