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42312032020 = 225171091141717
BaseRepresentation
bin100111011001111111…
…100101111100010100
311001012210112221012001
4213121333211330110
51143123340011040
631234325405044
73025350223636
oct473177457424
9131183487161
1042312032020
1116a43047a05
12824a269784
133cb407b14b
14209568ca56
15117998359a
hex9d9fe5f14

42312032020 has 48 divisors (see below), whose sum is σ = 94945268880. Its totient is φ = 15783081984.

The previous prime is 42312032011. The next prime is 42312032033. The reversal of 42312032020 is 2023021324.

It can be written as a sum of positive squares in 8 ways, for example, as 170511364 + 42141520656 = 13058^2 + 205284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533799 + ... + 607918.

It is an arithmetic number, because the mean of its divisors is an integer number (1978026435).

Almost surely, 242312032020 is an apocalyptic number.

It is an amenable number.

42312032020 is an abundant number, since it is smaller than the sum of its proper divisors (52633236860).

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

42312032020 is a wasteful number, since it uses less digits than its factorization.

42312032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141852 (or 1141850 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 42312032020 its reverse (2023021324), we get a palindrome (44335053344).

The spelling of 42312032020 in words is "forty-two billion, three hundred twelve million, thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 109 170 218 340 436 545 1090 1853 2180 3706 7412 9265 18530 37060 1141717 2283434 4566868 5708585 11417170 19409189 22834340 38818378 77636756 97045945 124447153 194091890 248894306 388183780 497788612 622235765 1244471530 2115601601 2488943060 4231203202 8462406404 10578008005 21156016010 42312032020