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254400231 = 384800077
BaseRepresentation
bin11110010100111…
…01011011100111
3122201200212111210
433022131123213
51010111301411
641124402503
76206236431
oct1712353347
9581625453
10254400231
11120669728
1271246433
13409234a7
1425b03651
1517502ca6
hexf29d6e7

254400231 has 4 divisors (see below), whose sum is σ = 339200312. Its totient is φ = 169600152.

The previous prime is 254400227. The next prime is 254400233. The reversal of 254400231 is 132004452.

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

It is not a de Polignac number, because 254400231 - 22 = 254400227 is a prime.

It is a super-2 number, since 2×2544002312 = 129438955065706722, 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 = 254400198 and 254400207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254400233) 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, 42400036 + ... + 42400041.

It is an arithmetic number, because the mean of its divisors is an integer number (84800078).

Almost surely, 2254400231 is an apocalyptic number.

254400231 is a deficient number, since it is larger than the sum of its proper divisors (84800081).

254400231 is an equidigital number, since it uses as much as digits as its factorization.

254400231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84800080.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 254400231 is about 15949.9288713148. The cubic root of 254400231 is about 633.6350128476.

Adding to 254400231 its reverse (132004452), we get a palindrome (386404683).

The spelling of 254400231 in words is "two hundred fifty-four million, four hundred thousand, two hundred thirty-one".

Divisors: 1 3 84800077 254400231