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20023112031010 = 25113146312682247
BaseRepresentation
bin1001000110101111111100…
…11110101101101100100010
32121220012011002211022220021
410203113332132231230202
510111024313134443020
6110330253553104054
74134423245032324
oct443277636555442
977805132738807
1020023112031010
11641a832816010
1222b474385802a
13b2322c63982a
144d31a398d614
1524aca8e251aa
hex1235fe7adb22

20023112031010 has 64 divisors (see below), whose sum is σ = 40674099953664. Its totient is φ = 7031037182400.

The previous prime is 20023112031001. The next prime is 20023112031023. The reversal of 20023112031010 is 1013021132002.

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, 4762294 + ... + 7919953.

It is an arithmetic number, because the mean of its divisors is an integer number (635532811776).

Almost surely, 220023112031010 is an apocalyptic number.

20023112031010 is an abundant number, since it is smaller than the sum of its proper divisors (20650987922654).

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

20023112031010 is a wasteful number, since it uses less digits than its factorization.

20023112031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12682759.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20023112031010 its reverse (1013021132002), we get a palindrome (21036133163012).

The spelling of 20023112031010 in words is "twenty trillion, twenty-three billion, one hundred twelve million, thirty-one thousand, ten".

Divisors: 1 2 5 10 11 22 31 55 62 110 155 310 341 463 682 926 1705 2315 3410 4630 5093 10186 14353 25465 28706 50930 71765 143530 157883 315766 789415 1578830 12682247 25364494 63411235 126822470 139504717 279009434 393149657 697523585 786299314 1395047170 1965748285 3931496570 4324646227 5871880361 8649292454 11743760722 21623231135 29359401805 43246462270 58718803610 64590683971 129181367942 182028291191 322953419855 364056582382 645906839710 910141455955 1820282911910 2002311203101 4004622406202 10011556015505 20023112031010