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255120053 = 907281279
BaseRepresentation
bin11110011010011…
…01001010110101
3122210001102220212
433031031022311
51010302320203
641152035205
76215325146
oct1715151265
9583042825
10255120053
11121010521
1271532b05
1340b16016
1425c4dacd
15175e61d8
hexf34d2b5

255120053 has 4 divisors (see below), whose sum is σ = 255402240. Its totient is φ = 254837868.

The previous prime is 255120031. The next prime is 255120077. The reversal of 255120053 is 350021552.

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 255120053 - 218 = 254857909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255120553) 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, 139733 + ... + 141546.

It is an arithmetic number, because the mean of its divisors is an integer number (63850560).

Almost surely, 2255120053 is an apocalyptic number.

It is an amenable number.

255120053 is a deficient number, since it is larger than the sum of its proper divisors (282187).

255120053 is an equidigital number, since it uses as much as digits as its factorization.

255120053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282186.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 255120053 is about 15972.4779855851. The cubic root of 255120053 is about 634.2320706345.

The spelling of 255120053 in words is "two hundred fifty-five million, one hundred twenty thousand, fifty-three".

Divisors: 1 907 281279 255120053