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255100051 = 697736563
BaseRepresentation
bin11110011010010…
…00010010010011
3122210000102111001
433031020102103
51010301200201
641151402431
76215212633
oct1715102223
9583012431
10255100051
11120aa7498
1271523417
1340b09b9b
1425c466c3
15175e0301
hexf348493

255100051 has 4 divisors (see below), whose sum is σ = 255143592. Its totient is φ = 255056512.

The previous prime is 255100031. The next prime is 255100063. The reversal of 255100051 is 150001552.

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

It is a cyclic number.

It is not a de Polignac number, because 255100051 - 221 = 253002899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255100031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11305 + ... + 25258.

It is an arithmetic number, because the mean of its divisors is an integer number (63785898).

Almost surely, 2255100051 is an apocalyptic number.

255100051 is a deficient number, since it is larger than the sum of its proper divisors (43541).

255100051 is an equidigital number, since it uses as much as digits as its factorization.

255100051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43540.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 255100051 is about 15971.8518337731. The cubic root of 255100051 is about 634.2154951161.

The spelling of 255100051 in words is "two hundred fifty-five million, one hundred thousand, fifty-one".

Divisors: 1 6977 36563 255100051