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254893057 = 1391833763
BaseRepresentation
bin11110011000101…
…01110000000001
3122202121220112121
433030111300001
51010223034212
641143124241
76213361306
oct1714256001
9582556477
10254893057
11120975a21
1271443681
1340a668c3
1425bd10ad
151759dd07
hexf315c01

254893057 has 4 divisors (see below), whose sum is σ = 256726960. Its totient is φ = 253059156.

The previous prime is 254893027. The next prime is 254893097. The reversal of 254893057 is 750398452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254893057 - 27 = 254892929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254893007) 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, 916743 + ... + 917020.

It is an arithmetic number, because the mean of its divisors is an integer number (64181740).

Almost surely, 2254893057 is an apocalyptic number.

It is an amenable number.

254893057 is a deficient number, since it is larger than the sum of its proper divisors (1833903).

254893057 is a wasteful number, since it uses less digits than its factorization.

254893057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833902.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 254893057 is about 15965.3705563009. The cubic root of 254893057 is about 634.0439097254.

The spelling of 254893057 in words is "two hundred fifty-four million, eight hundred ninety-three thousand, fifty-seven".

Divisors: 1 139 1833763 254893057