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14400069 = 34800023
BaseRepresentation
bin110110111011…
…101001000101
31000002121011220
4312323221011
512141300234
61232350553
7233253465
oct66735105
930077156
1014400069
118145a92
1249a5459
132ca2568
141cabba5
1513e6a49
hexdbba45

14400069 has 4 divisors (see below), whose sum is σ = 19200096. Its totient is φ = 9600044.

The previous prime is 14400059. The next prime is 14400079. The reversal of 14400069 is 96000441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96000441 = 332000147.

It is an interprime number because it is at equal distance from previous prime (14400059) and next prime (14400079).

It is a cyclic number.

It is not a de Polignac number, because 14400069 - 212 = 14395973 is a prime.

It is a super-2 number, since 2×144000692 = 414723974409522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14400019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400009 + ... + 2400014.

It is an arithmetic number, because the mean of its divisors is an integer number (4800024).

Almost surely, 214400069 is an apocalyptic number.

It is an amenable number.

14400069 is a deficient number, since it is larger than the sum of its proper divisors (4800027).

14400069 is an equidigital number, since it uses as much as digits as its factorization.

14400069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800026.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 14400069 is about 3794.7422837394. The cubic root of 14400069 is about 243.2884684074.

The spelling of 14400069 in words is "fourteen million, four hundred thousand, sixty-nine".

Divisors: 1 3 4800023 14400069