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13705404 = 2237271571
BaseRepresentation
bin110100010010…
…000010111100
3221210022021120
4310102002330
512002033104
61205430540
7224331306
oct64220274
927708246
1013705404
117811089
12470b450
132abb30b
141b6a976
15130acd9
hexd120bc

13705404 has 24 divisors (see below), whose sum is σ = 32043648. Its totient is φ = 4559280.

The previous prime is 13705387. The next prime is 13705409. The reversal of 13705404 is 40450731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13705409) 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, 7939 + ... + 9509.

It is an arithmetic number, because the mean of its divisors is an integer number (1335152).

Almost surely, 213705404 is an apocalyptic number.

It is an amenable number.

13705404 is an abundant number, since it is smaller than the sum of its proper divisors (18338244).

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

13705404 is a wasteful number, since it uses less digits than its factorization.

13705404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 13705404 is about 3702.0810363902. The cubic root of 13705404 is about 239.3117085043.

The spelling of 13705404 in words is "thirteen million, seven hundred five thousand, four hundred four".

Divisors: 1 2 3 4 6 12 727 1454 1571 2181 2908 3142 4362 4713 6284 8724 9426 18852 1142117 2284234 3426351 4568468 6852702 13705404