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20100909282 = 2331631059169
BaseRepresentation
bin10010101110000110…
…111000100011100010
31220212212101222202120
4102232012320203202
5312131313044112
613122332125110
71311055624026
oct225606704342
956785358676
1020100909282
118585491723
123a8b906796
131b8457927c
14d89872386
157c9a4ee8c
hex4ae1b88e2

20100909282 has 16 divisors (see below), whose sum is σ = 40214566560. Its totient is φ = 6698178432.

The previous prime is 20100909281. The next prime is 20100909313. The reversal of 20100909282 is 28290900102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20100909281) 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, 510607 + ... + 548562.

It is an arithmetic number, because the mean of its divisors is an integer number (2513410410).

Almost surely, 220100909282 is an apocalyptic number.

20100909282 is an abundant number, since it is smaller than the sum of its proper divisors (20113657278).

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

20100909282 is a wasteful number, since it uses less digits than its factorization.

20100909282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062337.

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 20100909282 in words is "twenty billion, one hundred million, nine hundred nine thousand, two hundred eighty-two".

Divisors: 1 2 3 6 3163 6326 9489 18978 1059169 2118338 3177507 6355014 3350151547 6700303094 10050454641 20100909282