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255213012 = 223163130477
BaseRepresentation
bin11110011011000…
…11110111010100
3122210020011102210
433031203313110
51010313304022
641154033420
76216163155
oct1715436724
9583204383
10255213012
1112107434a
1271578870
1340b49422
1425c7592c
1517613a0c
hexf363dd4

255213012 has 24 divisors (see below), whose sum is σ = 599154976. Its totient is φ = 84548448.

The previous prime is 255212933. The next prime is 255213031. The reversal of 255213012 is 210312552.

255213012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2552130122 = 130267362988224288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 255213012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63283 + ... + 67194.

Almost surely, 2255213012 is an apocalyptic number.

It is an amenable number.

255213012 is an abundant number, since it is smaller than the sum of its proper divisors (343941964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255213012 is a wasteful number, since it uses less digits than its factorization.

255213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130647 (or 130645 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 255213012 is about 15975.3876948261. The cubic root of 255213012 is about 634.3090937444.

Adding to 255213012 its reverse (210312552), we get a palindrome (465525564).

The spelling of 255213012 in words is "two hundred fifty-five million, two hundred thirteen thousand, twelve".

Divisors: 1 2 3 4 6 12 163 326 489 652 978 1956 130477 260954 391431 521908 782862 1565724 21267751 42535502 63803253 85071004 127606506 255213012