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20033000506 = 2231123938749
BaseRepresentation
bin10010101010000011…
…110101010000111010
31220201010121212102201
4102222003311100322
5312011422004011
613111504420414
71306302460201
oct225203652072
956633555381
1020033000506
118550119872
123a7101770a
131b7349056c
14d80836238
157c3ad8cc1
hex4aa0f543a

20033000506 has 16 divisors (see below), whose sum is σ = 31359600000. Its totient is φ = 9579900528.

The previous prime is 20033000503. The next prime is 20033000521. The reversal of 20033000506 is 60500033002.

It is a super-2 number, since 2×200330005062 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20033000503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497620 + ... + 536368.

It is an arithmetic number, because the mean of its divisors is an integer number (1959975000).

Almost surely, 220033000506 is an apocalyptic number.

20033000506 is a deficient number, since it is larger than the sum of its proper divisors (11326599494).

20033000506 is a wasteful number, since it uses less digits than its factorization.

20033000506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50013.

The product of its (nonzero) digits is 540, while the sum is 19.

Adding to 20033000506 its reverse (60500033002), we get a palindrome (80533033508).

The spelling of 20033000506 in words is "twenty billion, thirty-three million, five hundred six", and thus it is an aban number.

Divisors: 1 2 23 46 11239 22478 38749 77498 258497 516994 891227 1782454 435500011 871000022 10016500253 20033000506