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20312003130302 = 2133586132178479
BaseRepresentation
bin1001001111001010000011…
…01110110011001110111110
32122220210211102101201201102
410213211001232303032332
510130242440300132202
6111111112212013102
74164331241616242
oct447450156631676
978823742351642
1020312003130302
1165212aa263834
122340728901192
13b4454bb01bc0
1450316b594422
152535661d2d02
hex127941bb33be

20312003130302 has 16 divisors (see below), whose sum is σ = 32811803922240. Its totient is φ = 9374740230432.

The previous prime is 20312003130281. The next prime is 20312003130407. The reversal of 20312003130302 is 20303130021302.

It is a super-2 number, since 2×203120031303022 (a number of 27 digits) contains 22 as substring.

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, 8234699 + ... + 10413177.

It is an arithmetic number, because the mean of its divisors is an integer number (2050737745140).

Almost surely, 220312003130302 is an apocalyptic number.

20312003130302 is a deficient number, since it is larger than the sum of its proper divisors (12499800791938).

20312003130302 is a wasteful number, since it uses less digits than its factorization.

20312003130302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537107.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20312003130302 its reverse (20303130021302), we get a palindrome (40615133151604).

The spelling of 20312003130302 in words is "twenty trillion, three hundred twelve billion, three million, one hundred thirty thousand, three hundred two".

Divisors: 1 2 13 26 358613 717226 2178479 4356958 4661969 9323938 28320227 56640454 781230889627 1562461779254 10156001565151 20312003130302