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14069431 = 7122791
BaseRepresentation
bin110101101010…
…111010110111
3222110210122001
4311222322313
512100210211
61221320131
7230405515
oct65527267
928423561
1014069431
117a3a632
124866047
132bb7c0c
141c234b5
15137dac1
hexd6aeb7

14069431 has 6 divisors (see below), whose sum is σ = 14275496. Its totient is φ = 13866300.

The previous prime is 14069417. The next prime is 14069449. The reversal of 14069431 is 13496041.

It is not a de Polignac number, because 14069431 - 29 = 14068919 is a prime.

It is a super-2 number, since 2×140694312 = 395897777327522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14069431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14066431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3646 + ... + 6436.

Almost surely, 214069431 is an apocalyptic number.

14069431 is a deficient number, since it is larger than the sum of its proper divisors (206065).

14069431 is an frugal number, since it uses more digits than its factorization.

14069431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933 (or 2862 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 14069431 is about 3750.9240194917. The cubic root of 14069431 is about 241.4119947904.

The spelling of 14069431 in words is "fourteen million, sixty-nine thousand, four hundred thirty-one".

Divisors: 1 71 2791 5041 198161 14069431