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20200323312 = 24321310790771
BaseRepresentation
bin10010110100000010…
…000111100011110000
31221010210110202011200
4102310002013203300
5312332240321222
613140243011200
71313403625611
oct226402074360
957123422150
1020200323312
118626612984
123ab9069b00
131b9c046140
14d98b4dc08
157d363aeac
hex4b40878f0

20200323312 has 60 divisors (see below), whose sum is σ = 60881535624. Its totient is φ = 6215483520.

The previous prime is 20200323293. The next prime is 20200323337. The reversal of 20200323312 is 21332300202.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5393514 + ... + 5397257.

Almost surely, 220200323312 is an apocalyptic number.

It is an amenable number.

20200323312 is an abundant number, since it is smaller than the sum of its proper divisors (40681212312).

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

20200323312 is a wasteful number, since it uses less digits than its factorization.

20200323312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10790798 (or 10790789 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20200323312 its reverse (21332300202), we get a palindrome (41532623514).

The spelling of 20200323312 in words is "twenty billion, two hundred million, three hundred twenty-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 10790771 21581542 32372313 43163084 64744626 86326168 97116939 129489252 140280023 172652336 194233878 258978504 280560046 388467756 420840069 517957008 561120092 776935512 841680138 1122240184 1262520207 1553871024 1683360276 2244480368 2525040414 3366720552 5050080828 6733441104 10100161656 20200323312