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20032120026 = 2326271177467
BaseRepresentation
bin10010101010000000…
…011110010011011010
31220201001222010122100
4102222000132103122
5312011210320101
613111433504230
71306262132202
oct225200362332
956631863570
1020032120026
11854a6782a6
123a70872076
131b73242879
14d80687402
157c39b2e86
hex4aa01e4da

20032120026 has 24 divisors (see below), whose sum is σ = 43410092544. Its totient is φ = 6676270920.

The previous prime is 20032120021. The next prime is 20032120027. The reversal of 20032120026 is 62002123002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20032119990 and 20032120008.

It is not an unprimeable number, because it can be changed into a prime (20032120021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24145 + ... + 201611.

It is an arithmetic number, because the mean of its divisors is an integer number (1808753856).

Almost surely, 220032120026 is an apocalyptic number.

20032120026 is an abundant number, since it is smaller than the sum of its proper divisors (23377972518).

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

20032120026 is a wasteful number, since it uses less digits than its factorization.

20032120026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183746 (or 183743 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20032120026 its reverse (62002123002), we get a palindrome (82034243028).

The spelling of 20032120026 in words is "twenty billion, thirty-two million, one hundred twenty thousand, twenty-six".

Divisors: 1 2 3 6 9 18 6271 12542 18813 37626 56439 112878 177467 354934 532401 1064802 1597203 3194406 1112895557 2225791114 3338686671 6677373342 10016060013 20032120026