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13905414 = 2323720879
BaseRepresentation
bin110101000010…
…111000000110
3222011110122100
4311002320012
512024433124
61214012530
7226123365
oct65027006
928143570
1013905414
117938386
1247a7146
132b5b373
141bbd7dc
15134a1c9
hexd42e06

13905414 has 24 divisors (see below), whose sum is σ = 30944160. Its totient is φ = 4509648.

The previous prime is 13905407. The next prime is 13905427. The reversal of 13905414 is 41450931.

It is a super-2 number, since 2×139054142 = 386721077022792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9774 + ... + 11105.

It is an arithmetic number, because the mean of its divisors is an integer number (1289340).

Almost surely, 213905414 is an apocalyptic number.

13905414 is an abundant number, since it is smaller than the sum of its proper divisors (17038746).

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

13905414 is a wasteful number, since it uses less digits than its factorization.

13905414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20924 (or 20921 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 13905414 is about 3728.9963797247. The cubic root of 13905414 is about 240.4702239377.

Adding to 13905414 its sum of digits (27), we get a square (13905441 = 37292).

The spelling of 13905414 in words is "thirteen million, nine hundred five thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 20879 41758 62637 125274 187911 375822 772523 1545046 2317569 4635138 6952707 13905414