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255105301251213 = 3275812969660419
BaseRepresentation
bin111010000000010001010100…
…110111001000010010001101
31020110020211101001210020220200
4322000101110313020102031
5231414121124110014323
62302321431342404113
7104506515115464360
oct7200212467102215
91213224331706820
10255105301251213
1174314606a7a546
1224741149290639
13ac4643295c88a
1446dd23bb140d7
151e75d1ac6b443
hexe80454dc848d

255105301251213 has 24 divisors (see below), whose sum is σ = 421133462318400. Its totient is φ = 145771947990144.

The previous prime is 255105301251169. The next prime is 255105301251223. The reversal of 255105301251213 is 312152103501552.

255105301251213 is a `hidden beast` number, since 2 + 5 + 5 + 105 + 30 + 1 + 2 + 512 + 1 + 3 = 666.

It is not a de Polignac number, because 255105301251213 - 232 = 255101006283917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255105301251223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31168083 + ... + 38492336.

It is an arithmetic number, because the mean of its divisors is an integer number (17547227596600).

Almost surely, 2255105301251213 is an apocalyptic number.

It is an amenable number.

255105301251213 is a deficient number, since it is larger than the sum of its proper divisors (166028161067187).

255105301251213 is a wasteful number, since it uses less digits than its factorization.

255105301251213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69718561 (or 69718558 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

Adding to 255105301251213 its reverse (312152103501552), we get a palindrome (567257404752765).

The spelling of 255105301251213 in words is "two hundred fifty-five trillion, one hundred five billion, three hundred one million, two hundred fifty-one thousand, two hundred thirteen".

Divisors: 1 3 7 9 21 63 58129 174387 406903 523161 1220709 3662127 69660419 208981257 487622933 626943771 1462868799 4388606397 4049290496051 12147871488153 28345033472357 36443614464459 85035100417071 255105301251213