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20000122003120 = 245761015853877
BaseRepresentation
bin1001000110000101001000…
…01010101101111010110000
32121210222210220000220110211
410203002210022231322300
510110140222213044440
6110311532413033504
74132650445025050
oct443024412557260
977728726026424
1020000122003120
116411005517866
1222b01a8485894
13b2100765c62c
144d2022539560
1524a3b0934eea
hex1230a42adeb0

20000122003120 has 80 divisors (see below), whose sum is σ = 53151900971328. Its totient is φ = 6856059571200.

The previous prime is 20000122003111. The next prime is 20000122003133. The reversal of 20000122003120 is 2130022100002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×200001220031202 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20000122003120.

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, 489622 + ... + 6343498.

Almost surely, 220000122003120 is an apocalyptic number.

20000122003120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000122003120 is an abundant number, since it is smaller than the sum of its proper divisors (33151778968208).

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

20000122003120 is a wasteful number, since it uses less digits than its factorization.

20000122003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5859998 (or 5859992 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20000122003120 its reverse (2130022100002), we get a palindrome (22130144103122).

The spelling of 20000122003120 in words is "twenty trillion, one hundred twenty-two million, three thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 6101 12202 24404 30505 42707 48808 61010 85414 97616 122020 170828 213535 244040 341656 427070 488080 683312 854140 1708280 3416560 5853877 11707754 23415508 29269385 40977139 46831016 58538770 81954278 93662032 117077540 163908556 204885695 234155080 327817112 409771390 468310160 655634224 819542780 1639085560 3278171120 35714503577 71429007154 142858014308 178572517885 250001525039 285716028616 357145035770 500003050078 571432057232 714290071540 1000006100156 1250007625195 1428580143080 2000012200312 2500015250390 2857160286160 4000024400624 5000030500780 10000061001560 20000122003120