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14920431 = 36774231
BaseRepresentation
bin111000111010…
…101011101111
31001002000222120
4320322223233
512304423211
61251444023
7240551541
oct70725357
931060876
1014920431
118470a39
124bb6613
133125376
141da5691
15149ad06
hexe3aaef

14920431 has 8 divisors (see below), whose sum is σ = 20191104. Its totient is φ = 9798360.

The previous prime is 14920421. The next prime is 14920457. The reversal of 14920431 is 13402941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14920431 - 27 = 14920303 is a prime.

It is a super-2 number, since 2×149204312 = 445238522451522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14920421) 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, 36915 + ... + 37316.

It is an arithmetic number, because the mean of its divisors is an integer number (2523888).

Almost surely, 214920431 is an apocalyptic number.

14920431 is a deficient number, since it is larger than the sum of its proper divisors (5270673).

14920431 is an equidigital number, since it uses as much as digits as its factorization.

14920431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74301.

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

The square root of 14920431 is about 3862.6973735979. The cubic root of 14920431 is about 246.1843584647.

It can be divided in two parts, 14920 and 431, that added together give a palindrome (15351).

The spelling of 14920431 in words is "fourteen million, nine hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 67 201 74231 222693 4973477 14920431