Search a number
-
+
255114521 = 1213210317
BaseRepresentation
bin11110011010010…
…11110100011001
3122210001011022222
433031023310121
51010302131041
641151553425
76215303054
oct1715136431
9583034288
10255114521
11121007352
127152b875
1340b1364c
1425c4ba9b
15175e474b
hexf34bd19

255114521 has 4 divisors (see below), whose sum is σ = 255326052. Its totient is φ = 254902992.

The previous prime is 255114499. The next prime is 255114523. The reversal of 255114521 is 125411552.

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 7398400 + 247716121 = 2720^2 + 15739^2 .

It is a cyclic number.

It is not a de Polignac number, because 255114521 - 222 = 250920217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255114523) 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, 103946 + ... + 106371.

It is an arithmetic number, because the mean of its divisors is an integer number (63831513).

Almost surely, 2255114521 is an apocalyptic number.

It is an amenable number.

255114521 is a deficient number, since it is larger than the sum of its proper divisors (211531).

255114521 is a wasteful number, since it uses less digits than its factorization.

255114521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211530.

The product of its digits is 2000, while the sum is 26.

The square root of 255114521 is about 15972.3048117671. The cubic root of 255114521 is about 634.2274863912.

The spelling of 255114521 in words is "two hundred fifty-five million, one hundred fourteen thousand, five hundred twenty-one".

Divisors: 1 1213 210317 255114521