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255225073 = 1311948283
BaseRepresentation
bin11110011011001…
…10110011110001
3122210020202222111
433031212303301
51010314200243
641154205321
76216243265
oct1715466361
9583222874
10255225073
11121082414
1271583841
1340b51a6c
1425c7a0a5
151761739d
hexf366cf1

255225073 has 4 divisors (see below), whose sum is σ = 257173488. Its totient is φ = 253276660.

The previous prime is 255225053. The next prime is 255225079. The reversal of 255225073 is 370522552.

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 255225073 - 217 = 255094001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255225079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974011 + ... + 974272.

It is an arithmetic number, because the mean of its divisors is an integer number (64293372).

Almost surely, 2255225073 is an apocalyptic number.

It is an amenable number.

255225073 is a deficient number, since it is larger than the sum of its proper divisors (1948415).

255225073 is a wasteful number, since it uses less digits than its factorization.

255225073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948414.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 255225073 is about 15975.7651772928. The cubic root of 255225073 is about 634.3190857656.

The spelling of 255225073 in words is "two hundred fifty-five million, two hundred twenty-five thousand, seventy-three".

Divisors: 1 131 1948283 255225073