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20012253342 = 2317918633383
BaseRepresentation
bin10010101000110100…
…101100000010011110
31220122200120210200020
4102220310230002132
5311441114101332
613105444013010
71305631226634
oct225064540236
956580523606
1020012253342
11853a439154
123a66091166
131b6c0a8033
14d7bb95354
157c1d8b82c
hex4a8d2c09e

20012253342 has 16 divisors (see below), whose sum is σ = 40248109440. Its totient is φ = 6633483992.

The previous prime is 20012253323. The next prime is 20012253389. The reversal of 20012253342 is 24335221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9315618 + ... + 9317765.

It is an arithmetic number, because the mean of its divisors is an integer number (2515506840).

Almost surely, 220012253342 is an apocalyptic number.

20012253342 is an abundant number, since it is smaller than the sum of its proper divisors (20235856098).

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

20012253342 is a wasteful number, since it uses less digits than its factorization.

20012253342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18633567.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20012253342 its reverse (24335221002), we get a palindrome (44347474344).

The spelling of 20012253342 in words is "twenty billion, twelve million, two hundred fifty-three thousand, three hundred forty-two".

Divisors: 1 2 3 6 179 358 537 1074 18633383 37266766 55900149 111800298 3335375557 6670751114 10006126671 20012253342