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2131033213020 = 223560383588199
BaseRepresentation
bin11111000000101011011…
…110100100100001011100
321112201120100221202101210
4133000223132210201130
5234403324000304040
64310552205304420
7306650663303205
oct37005336444134
97481510852353
102131033213020
11751847769178
122a5012865110
13125c5650464a
14751dd2705ac
153a6768d3480
hex1f02b7a485c

2131033213020 has 48 divisors (see below), whose sum is σ = 5967001958400. Its totient is φ = 568265146176.

The previous prime is 2131033213019. The next prime is 2131033213031. The reversal of 2131033213020 is 203123301312.

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, 3328881 + ... + 3917079.

It is an arithmetic number, because the mean of its divisors is an integer number (124312540800).

Almost surely, 22131033213020 is an apocalyptic number.

2131033213020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131033213020 is an abundant number, since it is smaller than the sum of its proper divisors (3835968745380).

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

2131033213020 is a wasteful number, since it uses less digits than its factorization.

2131033213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648594 (or 648592 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2131033213020 its reverse (203123301312), we get a palindrome (2334156514332).

The spelling of 2131033213020 in words is "two trillion, one hundred thirty-one billion, thirty-three million, two hundred thirteen thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 60383 120766 181149 241532 301915 362298 588199 603830 724596 905745 1176398 1207660 1764597 1811490 2352796 2940995 3529194 3622980 5881990 7058388 8822985 11763980 17645970 35291940 35517220217 71034440434 106551660651 142068880868 177586101085 213103321302 355172202170 426206642604 532758303255 710344404340 1065516606510 2131033213020