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12023200020 = 22351317906727
BaseRepresentation
bin10110011001010001…
…10111100100010100
31011000220202211210110
423030220313210110
5144110414400040
65305014523020
7603642341166
oct131450674424
934026684713
1012023200020
11510a868147
1223b6666470
131197bc8650
14820b3a936
154a5804980
hex2cca37914

12023200020 has 96 divisors (see below), whose sum is σ = 38387236608. Its totient is φ = 2785462272.

The previous prime is 12023200001. The next prime is 12023200027. The reversal of 12023200020 is 2000232021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12023199969 and 12023200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023200027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440104 + ... + 466623.

It is an arithmetic number, because the mean of its divisors is an integer number (399867048).

Almost surely, 212023200020 is an apocalyptic number.

12023200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12023200020 is an abundant number, since it is smaller than the sum of its proper divisors (26364036588).

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

12023200020 is a wasteful number, since it uses less digits than its factorization.

12023200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906769 (or 906767 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 12023200020 its reverse (2000232021), we get a palindrome (14023432041).

The spelling of 12023200020 in words is "twelve billion, twenty-three million, two hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 17 20 26 30 34 39 51 52 60 65 68 78 85 102 130 156 170 195 204 221 255 260 340 390 442 510 663 780 884 1020 1105 1326 2210 2652 3315 4420 6630 13260 906727 1813454 2720181 3626908 4533635 5440362 9067270 10880724 11787451 13600905 15414359 18134540 23574902 27201810 30828718 35362353 46243077 47149804 54403620 58937255 61657436 70724706 77071795 92486154 117874510 141449412 154143590 176811765 184972308 200386667 231215385 235749020 308287180 353623530 400773334 462430770 601160001 707247060 801546668 924861540 1001933335 1202320002 2003866670 2404640004 3005800005 4007733340 6011600010 12023200020