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255412506 = 23109390539
BaseRepresentation
bin11110011100101…
…00100100011010
3122210121022002110
433032110210122
51010341200011
641202213150
76220653606
oct1716244432
9583538073
10255412506
111211a0218
12716541b6
1340bb917b
1425cc8506
1517652ba6
hexf39491a

255412506 has 16 divisors (see below), whose sum is σ = 515512800. Its totient is φ = 84356208.

The previous prime is 255412501. The next prime is 255412513. The reversal of 255412506 is 605214552.

255412506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (255412501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194616 + ... + 195923.

It is an arithmetic number, because the mean of its divisors is an integer number (32219550).

Almost surely, 2255412506 is an apocalyptic number.

255412506 is an abundant number, since it is smaller than the sum of its proper divisors (260100294).

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

255412506 is a wasteful number, since it uses less digits than its factorization.

255412506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390653.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 255412506 is about 15981.6302672787. The cubic root of 255412506 is about 634.4743255252.

The spelling of 255412506 in words is "two hundred fifty-five million, four hundred twelve thousand, five hundred six".

Divisors: 1 2 3 6 109 218 327 654 390539 781078 1171617 2343234 42568751 85137502 127706253 255412506