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254225431 = 833062957
BaseRepresentation
bin11110010011100…
…10110000010111
3122201100222201201
433021302300113
51010040203211
641120533331
76204611005
oct1711626027
9581328651
10254225431
1112055a369
1271181247
1340891a65
1425a99a75
15174bb0c1
hexf272c17

254225431 has 4 divisors (see below), whose sum is σ = 257288472. Its totient is φ = 251162392.

The previous prime is 254225423. The next prime is 254225437. The reversal of 254225431 is 134522452.

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

It is a cyclic number.

It is not a de Polignac number, because 254225431 - 23 = 254225423 is a prime.

It is a super-2 number, since 2×2542254312 = 129261139534271522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254225431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254225437) 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, 1531396 + ... + 1531561.

It is an arithmetic number, because the mean of its divisors is an integer number (64322118).

Almost surely, 2254225431 is an apocalyptic number.

254225431 is a deficient number, since it is larger than the sum of its proper divisors (3063041).

254225431 is an equidigital number, since it uses as much as digits as its factorization.

254225431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063040.

The product of its digits is 9600, while the sum is 28.

The square root of 254225431 is about 15944.4482814552. The cubic root of 254225431 is about 633.4898547276.

Adding to 254225431 its reverse (134522452), we get a palindrome (388747883).

The spelling of 254225431 in words is "two hundred fifty-four million, two hundred twenty-five thousand, four hundred thirty-one".

Divisors: 1 83 3062957 254225431