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13745437 = 131317331
BaseRepresentation
bin110100011011…
…110100011101
3221212100012021
4310123310131
512004323222
61210340141
7224556106
oct64336435
927770167
1013745437
117839172
12472a651
132b035c4
141b7b3ad
151317ac7
hexd1bd1d

13745437 has 8 divisors (see below), whose sum is σ = 13936032. Its totient is φ = 13556400.

The previous prime is 13745429. The next prime is 13745443. The reversal of 13745437 is 73454731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13745437 - 23 = 13745429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13745737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41362 + ... + 41692.

It is an arithmetic number, because the mean of its divisors is an integer number (1742004).

Almost surely, 213745437 is an apocalyptic number.

It is an amenable number.

13745437 is a deficient number, since it is larger than the sum of its proper divisors (190595).

13745437 is a wasteful number, since it uses less digits than its factorization.

13745437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779.

The product of its digits is 35280, while the sum is 34.

The square root of 13745437 is about 3707.4839176994. The cubic root of 13745437 is about 239.5444890135.

The spelling of 13745437 in words is "thirteen million, seven hundred forty-five thousand, four hundred thirty-seven".

Divisors: 1 131 317 331 41527 43361 104927 13745437