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14550431 = 729229313
BaseRepresentation
bin110111100000…
…010110011111
31000101020102212
4313200112133
512211103211
61235511035
7234451040
oct67402637
930336385
1014550431
118238a55
124a5847b
133025b2c
141d0a8c7
15142638b
hexde059f

14550431 has 16 divisors (see below), whose sum is σ = 17332800. Its totient is φ = 11950848.

The previous prime is 14550427. The next prime is 14550443. The reversal of 14550431 is 13405541.

It is not a de Polignac number, because 14550431 - 22 = 14550427 is a prime.

It is a super-2 number, since 2×145504312 = 423430084571522, 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 = 14550397 and 14550406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14550331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46331 + ... + 46643.

It is an arithmetic number, because the mean of its divisors is an integer number (1083300).

Almost surely, 214550431 is an apocalyptic number.

14550431 is a deficient number, since it is larger than the sum of its proper divisors (2782369).

14550431 is a wasteful number, since it uses less digits than its factorization.

14550431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 14550431 is about 3814.5027198837. The cubic root of 14550431 is about 244.1323243111.

Adding to 14550431 its reverse (13405541), we get a palindrome (27955972).

The spelling of 14550431 in words is "fourteen million, five hundred fifty thousand, four hundred thirty-one".

Divisors: 1 7 29 203 229 313 1603 2191 6641 9077 46487 63539 71677 501739 2078633 14550431