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14139408 = 2431072753
BaseRepresentation
bin110101111100…
…000000010000
3222121100121210
4311330000100
512104430113
61223020120
7231116523
oct65740020
928540553
1014139408
117a88168
12489a640
132c10a1a
141c40bba
1513946c3
hexd7c010

14139408 has 40 divisors (see below), whose sum is σ = 36881568. Its totient is φ = 4667392.

The previous prime is 14139407. The next prime is 14139413. The reversal of 14139408 is 80493141.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14139407) 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, 3760 + ... + 6512.

Almost surely, 214139408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14139408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18440784).

14139408 is an abundant number, since it is smaller than the sum of its proper divisors (22742160).

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

14139408 is a wasteful number, since it uses less digits than its factorization.

14139408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871 (or 2865 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 14139408 is about 3760.2404178456. The cubic root of 14139408 is about 241.8115692760.

The spelling of 14139408 in words is "fourteen million, one hundred thirty-nine thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 107 214 321 428 642 856 1284 1712 2568 2753 5136 5506 8259 11012 16518 22024 33036 44048 66072 132144 294571 589142 883713 1178284 1767426 2356568 3534852 4713136 7069704 14139408