Search a number
-
+
255205373 = 2213115321
BaseRepresentation
bin11110011011000…
…01111111111101
3122210012202221212
433031201333331
51010313032443
641153534205
76216131663
oct1715417775
9583182855
10255205373
11121069635
1271574365
1340b45ac7
1425c72c33
1517611618
hexf361ffd

255205373 has 4 divisors (see below), whose sum is σ = 255322908. Its totient is φ = 255087840.

The previous prime is 255205339. The next prime is 255205393. The reversal of 255205373 is 373502552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 252587449 + 2617924 = 15893^2 + 1618^2 .

It is a cyclic number.

It is not a de Polignac number, because 255205373 - 28 = 255205117 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 (255205333) 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, 55448 + ... + 59873.

It is an arithmetic number, because the mean of its divisors is an integer number (63830727).

Almost surely, 2255205373 is an apocalyptic number.

It is an amenable number.

255205373 is a deficient number, since it is larger than the sum of its proper divisors (117535).

255205373 is a wasteful number, since it uses less digits than its factorization.

255205373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117534.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 255205373 is about 15975.1486065075. The cubic root of 255205373 is about 634.3027649977.

The spelling of 255205373 in words is "two hundred fifty-five million, two hundred five thousand, three hundred seventy-three".

Divisors: 1 2213 115321 255205373