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205135624331151 = 3131521973598807
BaseRepresentation
bin101110101001000111011100…
…000001001101111110001111
3222220022202220100212001111120
4232221013130001031332033
5203341420224312044101
62004142001014052023
761131363001006143
oct5651073401157617
9886282810761446
10205135624331151
115a3a95910731a8
121b0107a964a013
138a6028b520a67
14389288d815223
1518ab0ad2a2b36
hexba91dc04df8f

205135624331151 has 8 divisors (see below), whose sum is σ = 275602060170624. Its totient is φ = 135713135689560.

The previous prime is 205135624331093. The next prime is 205135624331159. The reversal of 205135624331151 is 151133426531502.

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

It is not a de Polignac number, because 205135624331151 - 26 = 205135624331087 is a prime.

It is a super-2 number, since 2×2051356243311512 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205135624331159) 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, 260986799011 + ... + 260986799796.

It is an arithmetic number, because the mean of its divisors is an integer number (34450257521328).

Almost surely, 2205135624331151 is an apocalyptic number.

205135624331151 is a deficient number, since it is larger than the sum of its proper divisors (70466435839473).

205135624331151 is a wasteful number, since it uses less digits than its factorization.

205135624331151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521973598941.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 205135624331151 in words is "two hundred five trillion, one hundred thirty-five billion, six hundred twenty-four million, three hundred thirty-one thousand, one hundred fifty-one".

Divisors: 1 3 131 393 521973598807 1565920796421 68378541443717 205135624331151