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20122203031320 = 23351312898848097
BaseRepresentation
bin1001001001101000100001…
…10000111000011100011000
32122020122220221000200222210
410210310100300320130120
510114140232434000240
6110444002405115120
74144531643450055
oct444642060703430
978218827020883
1020122203031320
1164588620321a5
12230b9990b8aa0
13b2c691a21420
144d7cc3dd002c
1524d658456780
hex124d10c38718

20122203031320 has 64 divisors (see below), whose sum is σ = 65010194413920. Its totient is φ = 4953157668864.

The previous prime is 20122203031319. The next prime is 20122203031351. The reversal of 20122203031320 is 2313030222102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6449422489 + ... + 6449425608.

Almost surely, 220122203031320 is an apocalyptic number.

20122203031320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122203031320 is an abundant number, since it is smaller than the sum of its proper divisors (44887991382600).

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

20122203031320 is a wasteful number, since it uses less digits than its factorization.

20122203031320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12898848124 (or 12898848120 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20122203031320 its reverse (2313030222102), we get a palindrome (22435233253422).

The spelling of 20122203031320 in words is "twenty trillion, one hundred twenty-two billion, two hundred three million, thirty-one thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1560 12898848097 25797696194 38696544291 51595392388 64494240485 77393088582 103190784776 128988480970 154786177164 167685025261 193482721455 257976961940 309572354328 335370050522 386965442910 503055075783 515953923880 670740101044 773930885820 838425126305 1006110151566 1341480202088 1547861771640 1676850252610 2012220303132 2515275378915 3353700505220 4024440606264 5030550757830 6707401010440 10061101515660 20122203031320