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450431 is a prime number
BaseRepresentation
bin1101101111101111111
3211212212122
41231331333
5103403211
613353155
73554132
oct1557577
9755778
10450431
11288463
121987bb
1312a037
14ba219
158d6db
hex6df7f

450431 has 2 divisors, whose sum is σ = 450432. Its totient is φ = 450430.

The previous prime is 450421. The next prime is 450451. The reversal of 450431 is 134054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450431 - 26 = 450367 is a prime.

It is a super-2 number, since 2×4504312 = 405776171522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225215 + 225216.

It is an arithmetic number, because the mean of its divisors is an integer number (225216).

2450431 is an apocalyptic number.

450431 is a deficient number, since it is larger than the sum of its proper divisors (1).

450431 is an equidigital number, since it uses as much as digits as its factorization.

450431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 450431 is about 671.1415647984. The cubic root of 450431 is about 76.6554005710.

Adding to 450431 its reverse (134054), we get a palindrome (584485).

The spelling of 450431 in words is "four hundred fifty thousand, four hundred thirty-one".