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20033013234 = 2313793251057
BaseRepresentation
bin10010101010000011…
…111000010111110010
31220201010122111220010
4102222003320113302
5312011422410414
613111504555350
71306302542253
oct225203702762
956633574803
1020033013234
118550128393
123a71022b56
131b734962b0
14d8083ab2a
157c3adc959
hex4aa0f85f2

20033013234 has 32 divisors (see below), whose sum is σ = 43694219520. Its totient is φ = 6085976832.

The previous prime is 20033013229. The next prime is 20033013241. The reversal of 20033013234 is 43231033002.

It is a self number, because there is not a number n which added to its sum of digits gives 20033013234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1619367 + ... + 1631690.

It is an arithmetic number, because the mean of its divisors is an integer number (1365444360).

Almost surely, 220033013234 is an apocalyptic number.

20033013234 is an abundant number, since it is smaller than the sum of its proper divisors (23661206286).

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

20033013234 is a wasteful number, since it uses less digits than its factorization.

20033013234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251154.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20033013234 its reverse (43231033002), we get a palindrome (63264046236).

The spelling of 20033013234 in words is "twenty billion, thirty-three million, thirteen thousand, two hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 78 79 158 237 474 1027 2054 3081 6162 3251057 6502114 9753171 19506342 42263741 84527482 126791223 253582446 256833503 513667006 770500509 1541001018 3338835539 6677671078 10016506617 20033013234