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254222431 is a prime number
BaseRepresentation
bin11110010011100…
…10000001011111
3122201100211121121
433021302001133
51010040104211
641120511411
76204566161
oct1711620137
9581324547
10254222431
11120558091
127117b567
1340890598
1425a98931
15174ba271
hexf27205f

254222431 has 2 divisors, whose sum is σ = 254222432. Its totient is φ = 254222430.

The previous prime is 254222417. The next prime is 254222467. The reversal of 254222431 is 134222452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254222431 - 27 = 254222303 is a prime.

It is a super-2 number, since 2×2542224312 = 129258088847099522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 254222396 and 254222405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254222401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127111215 + 127111216.

It is an arithmetic number, because the mean of its divisors is an integer number (127111216).

Almost surely, 2254222431 is an apocalyptic number.

254222431 is a deficient number, since it is larger than the sum of its proper divisors (1).

254222431 is an equidigital number, since it uses as much as digits as its factorization.

254222431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 25.

The square root of 254222431 is about 15944.3542045453. The cubic root of 254222431 is about 633.4873628748.

Adding to 254222431 its reverse (134222452), we get a palindrome (388444883).

The spelling of 254222431 in words is "two hundred fifty-four million, two hundred twenty-two thousand, four hundred thirty-one".