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205031202130502 = 21179117969621479
BaseRepresentation
bin101110100111100110001011…
…111110001000101001000110
3222212221210101000001122101122
4232213212023332020221012
5203333212400221134002
62004022011155553542
761121005215646316
oct5647461376105106
9885853330048348
10205031202130502
115a3692764a5320
121abb45068bb8b2
138a534897a7357
14388b7c533b446
1518a84eabe66a2
hexba798bf88a46

205031202130502 has 16 divisors (see below), whose sum is σ = 339752509862400. Its totient is φ = 92016304752840.

The previous prime is 205031202130487. The next prime is 205031202130523.

It is a happy number.

205031202130502 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58984809002 + ... + 58984812477.

It is an arithmetic number, because the mean of its divisors is an integer number (21234531866400).

Almost surely, 2205031202130502 is an apocalyptic number.

205031202130502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

205031202130502 is a deficient number, since it is larger than the sum of its proper divisors (134721307731898).

205031202130502 is a wasteful number, since it uses less digits than its factorization.

205031202130502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117969621571.

The product of its (nonzero) digits is 3600, while the sum is 26.

It can be divided in two parts, 20503120 and 2130502, that added together give a palindrome (22633622).

The spelling of 205031202130502 in words is "two hundred five trillion, thirty-one billion, two hundred two million, one hundred thirty thousand, five hundred two".

Divisors: 1 2 11 22 79 158 869 1738 117969621479 235939242958 1297665836269 2595331672538 9319600096841 18639200193682 102515601065251 205031202130502