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20032201311320 = 23511330713767079
BaseRepresentation
bin1001000111000000111000…
…01111100100010001011000
32121221001121112220121110202
410203200130033210101120
510111201422013430240
6110334355524001332
74135164423450662
oct443403417442130
977831545817422
1020032201311320
116423677446920
1222b645b830248
13b2404a7492c3
144d37c6ba5532
1524b13bd8a315
hex12381c3e4458

20032201311320 has 64 divisors (see below), whose sum is σ = 49184820691200. Its totient is φ = 7282233578880.

The previous prime is 20032201311307. The next prime is 20032201311337. The reversal of 20032201311320 is 2311310223002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20032201311292 and 20032201311301.

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, 5428460 + ... + 8338619.

It is an arithmetic number, because the mean of its divisors is an integer number (768512823300).

Almost surely, 220032201311320 is an apocalyptic number.

20032201311320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032201311320 is an abundant number, since it is smaller than the sum of its proper divisors (29152619379880).

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

20032201311320 is a wasteful number, since it uses less digits than its factorization.

20032201311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13770408 (or 13770404 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20032201311320 its reverse (2311310223002), we get a palindrome (22343511534322).

The spelling of 20032201311320 in words is "twenty trillion, thirty-two billion, two hundred one million, three hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 3307 6614 13228 16535 26456 33070 36377 66140 72754 132280 145508 181885 291016 363770 727540 1455080 13767079 27534158 55068316 68835395 110136632 137670790 151437869 275341580 302875738 550683160 605751476 757189345 1211502952 1514378690 3028757380 6057514760 45527730253 91055460506 182110921012 227638651265 364221842024 455277302530 500805032783 910554605060 1001610065566 1821109210120 2003220131132 2504025163915 4006440262264 5008050327830 10016100655660 20032201311320