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20313122214660 = 22351130777457901
BaseRepresentation
bin1001001111001100001000…
…11011110001001100000100
32122220220201102011002212020
410213212010123301030010
510130302233241332120
6111111415225523140
74164401050645662
oct447460433611404
978826642132766
1020313122214660
116521823a23440
12234099b6434b0
13b446999052b2
1450323605dc32
152535ce588640
hex1279846f1304

20313122214660 has 48 divisors (see below), whose sum is σ = 62047355130432. Its totient is φ = 4924393264000.

The previous prime is 20313122214643. The next prime is 20313122214713. The reversal of 20313122214660 is 6641222131302.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15388728291 + ... + 15388729610.

It is an arithmetic number, because the mean of its divisors is an integer number (1292653231884).

Almost surely, 220313122214660 is an apocalyptic number.

20313122214660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313122214660 is an abundant number, since it is smaller than the sum of its proper divisors (41734232915772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313122214660 is a wasteful number, since it uses less digits than its factorization.

20313122214660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30777457924 (or 30777457922 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 20313122214660 its reverse (6641222131302), we get a palindrome (26954344345962).

The spelling of 20313122214660 in words is "twenty trillion, three hundred thirteen billion, one hundred twenty-two million, two hundred fourteen thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 30777457901 61554915802 92332373703 123109831604 153887289505 184664747406 307774579010 338552036911 369329494812 461661868515 615549158020 677104073822 923323737030 1015656110733 1354208147644 1692760184555 1846647474060 2031312221466 3385520369110 4062624442932 5078280553665 6771040738220 10156561107330 20313122214660