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255990206 = 21091174267
BaseRepresentation
bin11110100001000…
…01100110111110
3122211200122112202
433100201212332
51011013141311
641222431502
76225611063
oct1720414676
9584618482
10255990206
1112155525a
1271892592
134105c0c4
1425dd8c6a
1517718e3b
hexf4219be

255990206 has 8 divisors (see below), whose sum is σ = 387508440. Its totient is φ = 126820728.

The previous prime is 255990193. The next prime is 255990209. The reversal of 255990206 is 602099552.

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

It is a self number, because there is not a number n which added to its sum of digits gives 255990206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255990209) 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, 586916 + ... + 587351.

It is an arithmetic number, because the mean of its divisors is an integer number (48438555).

Almost surely, 2255990206 is an apocalyptic number.

255990206 is a deficient number, since it is larger than the sum of its proper divisors (131518234).

255990206 is a wasteful number, since it uses less digits than its factorization.

255990206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174378.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 255990206 is about 15999.6939345726. The cubic root of 255990206 is about 634.9523232851.

The spelling of 255990206 in words is "two hundred fifty-five million, nine hundred ninety thousand, two hundred six".

Divisors: 1 2 109 218 1174267 2348534 127995103 255990206