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20000210099980 = 225111632692073347
BaseRepresentation
bin1001000110000101010010…
…11010110001111100001100
32121211000001000210200122111
410203002221122301330030
510110140412241144410
6110311545241153404
74132652564603155
oct443025132617414
977730030720574
1020000210099980
116411050219290
1222b0211a8b864
13b2101c996256
144d203010c92c
1524a3b8537b8a
hex1230a96b1f0c

20000210099980 has 96 divisors (see below), whose sum is σ = 46271156117760. Its totient is φ = 7201311194880.

The previous prime is 20000210099977. The next prime is 20000210099993. The reversal of 20000210099980 is 8999001200002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8609667 + ... + 10683013.

It is an arithmetic number, because the mean of its divisors is an integer number (481991209560).

Almost surely, 220000210099980 is an apocalyptic number.

20000210099980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000210099980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23135578058880).

20000210099980 is an abundant number, since it is smaller than the sum of its proper divisors (26270946017780).

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

20000210099980 is a wasteful number, since it uses less digits than its factorization.

20000210099980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073799 (or 2073797 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

Adding to 20000210099980 its reverse (8999001200002), we get a palindrome (28999211299982).

The spelling of 20000210099980 in words is "twenty trillion, two hundred ten million, ninety-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 163 220 269 326 538 652 815 1076 1345 1630 1793 2690 2959 3260 3586 5380 5918 7172 8965 11836 14795 17930 29590 35860 43847 59180 87694 175388 219235 438470 482317 876940 964634 1929268 2073347 2411585 4146694 4823170 8293388 9646340 10366735 20733470 22806817 41466940 45613634 91227268 114034085 228068170 337955561 456136340 557730343 675911122 1115460686 1351822244 1689777805 2230921372 2788651715 3379555610 3717511171 5577303430 6135033773 6759111220 7435022342 11154606860 12270067546 14870044684 18587555855 24540135092 30675168865 37175111710 61350337730 74350223420 90910045909 122700675460 181820091818 363640183636 454550229545 909100459090 1000010504999 1818200918180 2000021009998 4000042019996 5000052524995 10000105049990 20000210099980