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20313202342420 = 22513233396856579
BaseRepresentation
bin1001001111001100010010…
…01101011011101000010100
32122220220220222221000111001
410213212021031123220110
510130302414244424140
6111111431211153044
74164403043013421
oct447461115335024
978826828830431
1020313202342420
116521865181629
122340a02445784
13b446b03ab880
1450324295ad48
152535d6614e9a
hex12798935ba14

20313202342420 has 48 divisors (see below), whose sum is σ = 47936440056960. Its totient is φ = 7174161092736.

The previous prime is 20313202342313. The next prime is 20313202342523. The reversal of 20313202342420 is 2424320231302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1698422310 + ... + 1698434269.

It is an arithmetic number, because the mean of its divisors is an integer number (998675834520).

Almost surely, 220313202342420 is an apocalyptic number.

20313202342420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313202342420 is an abundant number, since it is smaller than the sum of its proper divisors (27623237714540).

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

20313202342420 is a wasteful number, since it uses less digits than its factorization.

20313202342420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396856624 (or 3396856622 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20313202342420 its reverse (2424320231302), we get a palindrome (22737522573722).

The spelling of 20313202342420 in words is "twenty trillion, three hundred thirteen billion, two hundred two million, three hundred forty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 23 26 46 52 65 92 115 130 230 260 299 460 598 1196 1495 2990 5980 3396856579 6793713158 13587426316 16984282895 33968565790 44159135527 67937131580 78127701317 88318271054 156255402634 176636542108 220795677635 312510805268 390638506585 441591355270 781277013170 883182710540 1015660117121 1562554026340 2031320234242 4062640468484 5078300585605 10156601171210 20313202342420