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20011333195 = 572233551257
BaseRepresentation
bin10010101000110001…
…001011011001001011
31220122121212001110201
4102220301023121023
5311440400130240
613105412153031
71305620345200
oct225061133113
956577761421
1020011333195
11853996a8a7
123a65908777
131b6bb45279
14d7b9d5ca7
157c1c58d9a
hex4a8c4b64b

20011333195 has 24 divisors (see below), whose sum is σ = 29148725664. Its totient is φ = 13125442176.

The previous prime is 20011333189. The next prime is 20011333213. The reversal of 20011333195 is 59133311002.

It is not a de Polignac number, because 20011333195 - 29 = 20011332683 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1769994 + ... + 1781263.

It is an arithmetic number, because the mean of its divisors is an integer number (1214530236).

Almost surely, 220011333195 is an apocalyptic number.

20011333195 is a deficient number, since it is larger than the sum of its proper divisors (9137392469).

20011333195 is a wasteful number, since it uses less digits than its factorization.

20011333195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551299 (or 3551292 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 28.

Adding to 20011333195 its reverse (59133311002), we get a palindrome (79144644197).

The spelling of 20011333195 in words is "twenty billion, eleven million, three hundred thirty-three thousand, one hundred ninety-five".

Divisors: 1 5 7 23 35 49 115 161 245 805 1127 5635 3551257 17756285 24858799 81678911 124293995 174011593 408394555 571752377 870057965 2858761885 4002266639 20011333195