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20023375460 = 22511269338347
BaseRepresentation
bin10010101001011111…
…000111011001100100
31220200110111212100112
4102221133013121210
5312001441003320
613110522232152
71306124611634
oct225137073144
956613455315
1020023375460
118545745390
123a69955658
131b714a057a
14d7d44c6c4
157c2d36ec5
hex4a97c7664

20023375460 has 48 divisors (see below), whose sum is σ = 46042395840. Its totient is φ = 7254138240.

The previous prime is 20023375457. The next prime is 20023375487. The reversal of 20023375460 is 6457332002.

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, 109994 + ... + 228353.

It is an arithmetic number, because the mean of its divisors is an integer number (959216580).

Almost surely, 220023375460 is an apocalyptic number.

20023375460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20023375460 is an abundant number, since it is smaller than the sum of its proper divisors (26019020380).

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

20023375460 is a wasteful number, since it uses less digits than its factorization.

20023375460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338636 (or 338634 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 20023375460 in words is "twenty billion, twenty-three million, three hundred seventy-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 269 538 1076 1345 2690 2959 5380 5918 11836 14795 29590 59180 338347 676694 1353388 1691735 3383470 3721817 6766940 7443634 14887268 18609085 37218170 74436340 91015343 182030686 364061372 455076715 910153430 1001168773 1820306860 2002337546 4004675092 5005843865 10011687730 20023375460