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20075966542 = 2191831288539
BaseRepresentation
bin10010101100100111…
…101111000001001110
31220211010110202202101
4102230213233001032
5312103421412132
613120041345314
71310333620462
oct225447570116
956733422671
1020075966542
1185723a5895
123a8349823a
131b7c355158
14d8641c4a2
157c77747e7
hex4ac9ef04e

20075966542 has 16 divisors (see below), whose sum is σ = 31716316800. Its totient is φ = 9504441720.

The previous prime is 20075966539. The next prime is 20075966563. The reversal of 20075966542 is 24566957002.

It is a junction number, because it is equal to n+sod(n) for n = 20075966492 and 20075966501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74692 + ... + 213847.

It is an arithmetic number, because the mean of its divisors is an integer number (1982269800).

Almost surely, 220075966542 is an apocalyptic number.

20075966542 is a deficient number, since it is larger than the sum of its proper divisors (11640350258).

20075966542 is a wasteful number, since it uses less digits than its factorization.

20075966542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290391.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 20075966542 in words is "twenty billion, seventy-five million, nine hundred sixty-six thousand, five hundred forty-two".

Divisors: 1 2 19 38 1831 3662 34789 69578 288539 577078 5482241 10964482 528314909 1056629818 10037983271 20075966542