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20012130132 = 2231999119199
BaseRepresentation
bin10010101000110100…
…001101111101010100
31220122200100112122220
4102220310031331110
5311441101131012
613105441222340
71305630204501
oct225064157524
956580315586
1020012130132
11853a364625
123a660319b0
131b6c063c27
14d7bb624a8
157c1d6508c
hex4a8d0df54

20012130132 has 48 divisors (see below), whose sum is σ = 46986240000. Its totient is φ = 6629182560.

The previous prime is 20012130121. The next prime is 20012130139. The reversal of 20012130132 is 23103121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012130139) by changing a digit.

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, 2170869 + ... + 2180067.

It is an arithmetic number, because the mean of its divisors is an integer number (978880000).

Almost surely, 220012130132 is an apocalyptic number.

It is an amenable number.

20012130132 is an abundant number, since it is smaller than the sum of its proper divisors (26974109868).

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

20012130132 is a wasteful number, since it uses less digits than its factorization.

20012130132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10316 (or 10314 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20012130132 its reverse (23103121002), we get a palindrome (43115251134).

The spelling of 20012130132 in words is "twenty billion, twelve million, one hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 199 398 597 796 911 1194 1822 2388 2733 3644 5466 9199 10932 18398 27597 36796 55194 110388 181289 362578 543867 725156 1087734 1830601 2175468 3661202 5491803 7322404 8380289 10983606 16760578 21967212 25140867 33521156 50281734 100563468 1667677511 3335355022 5003032533 6670710044 10006065066 20012130132