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255105155 = 5119342767
BaseRepresentation
bin11110011010010…
…01100010000011
3122210000200111002
433031021202003
51010301331110
641151442215
76215233544
oct1715114203
9583020432
10255105155
11121000308
127152636b
1340b0c2c6
1425c484cb
15175e1aa5
hexf349883

255105155 has 8 divisors (see below), whose sum is σ = 306389952. Its totient is φ = 203908288.

The previous prime is 255105133. The next prime is 255105163. The reversal of 255105155 is 551501552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255105155 - 210 = 255104131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15419 + ... + 27348.

It is an arithmetic number, because the mean of its divisors is an integer number (38298744).

Almost surely, 2255105155 is an apocalyptic number.

255105155 is a deficient number, since it is larger than the sum of its proper divisors (51284797).

255105155 is a wasteful number, since it uses less digits than its factorization.

255105155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43965.

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 255105155 is about 15972.0116140704. The cubic root of 255105155 is about 634.2197248478.

The spelling of 255105155 in words is "two hundred fifty-five million, one hundred five thousand, one hundred fifty-five".

Divisors: 1 5 1193 5965 42767 213835 51021031 255105155