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14457431 = 73198047
BaseRepresentation
bin110111001001…
…101001010111
31000012111212102
4313021221113
512200114211
61233512315
7233612642
oct67115127
930174772
1014457431
11818509a
124a1269b
132cc26c1
141cc4a59
151408a3b
hexdc9a57

14457431 has 4 divisors (see below), whose sum is σ = 14655552. Its totient is φ = 14259312.

The previous prime is 14457413. The next prime is 14457449. The reversal of 14457431 is 13475441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (14457413) and next prime (14457449).

It is a cyclic number.

It is not a de Polignac number, because 14457431 - 26 = 14457367 is a prime.

It is a super-2 number, since 2×144574312 = 418034622239522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14457394 and 14457403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14457451) 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, 98951 + ... + 99096.

It is an arithmetic number, because the mean of its divisors is an integer number (3663888).

Almost surely, 214457431 is an apocalyptic number.

14457431 is a deficient number, since it is larger than the sum of its proper divisors (198121).

14457431 is an equidigital number, since it uses as much as digits as its factorization.

14457431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198120.

The product of its digits is 6720, while the sum is 29.

The square root of 14457431 is about 3802.2928608933. The cubic root of 14457431 is about 243.6110831497.

It can be divided in two parts, 144 and 57431, that added together give a palindrome (57575).

The spelling of 14457431 in words is "fourteen million, four hundred fifty-seven thousand, four hundred thirty-one".

Divisors: 1 73 198047 14457431