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20013032310 = 23519311911257
BaseRepresentation
bin10010101000110111…
…101010001101110110
31220122202001101012220
4102220313222031312
5311441314013220
613105512423210
71305640652655
oct225067521566
956582041186
1020013032310
11853a920427
123a663a7b06
131b6c2bb76b
14d7bd1919c
157c1e92540
hex4a8dea376

20013032310 has 64 divisors (see below), whose sum is σ = 50579942400. Its totient is φ = 5053853952.

The previous prime is 20013032287. The next prime is 20013032357. The reversal of 20013032310 is 1323031002.

It is a super-2 number, since 2×200130323102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20013032310.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1772202 + ... + 1783458.

It is an arithmetic number, because the mean of its divisors is an integer number (790311600).

Almost surely, 220013032310 is an apocalyptic number.

20013032310 is an abundant number, since it is smaller than the sum of its proper divisors (30566910090).

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

20013032310 is a wasteful number, since it uses less digits than its factorization.

20013032310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14405.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20013032310 its reverse (1323031002), we get a palindrome (21336063312).

The spelling of 20013032310 in words is "twenty billion, thirteen million, thirty-two thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 3119 6238 9357 11257 15595 18714 22514 31190 33771 46785 56285 59261 67542 93570 112570 118522 168855 177783 213883 296305 337710 355566 427766 592610 641649 888915 1069415 1283298 1777830 2138830 3208245 6416490 35110583 70221166 105331749 175552915 210663498 351105830 526658745 667101077 1053317490 1334202154 2001303231 3335505385 4002606462 6671010770 10006516155 20013032310