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20412344412 = 2234431465141
BaseRepresentation
bin10011000000101010…
…111010100001011100
31221200120102112110000
4103000222322201130
5313301030010122
613213255214300
71321560031125
oct230052724134
957616375400
1020412344412
118725266529
123b58077390
131c03c4bc05
14db8d8104c
157e706c0ac
hex4c0aba85c

20412344412 has 60 divisors (see below), whose sum is σ = 54602912056. Its totient is φ = 6645875040.

The previous prime is 20412344411. The next prime is 20412344437. The reversal of 20412344412 is 21444321402.

20412344412 is a `hidden beast` number, since 204 + 1 + 2 + 3 + 44 + 412 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412344411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 718639 + ... + 746502.

Almost surely, 220412344412 is an apocalyptic number.

It is an amenable number.

20412344412 is an abundant number, since it is smaller than the sum of its proper divisors (34190567644).

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

20412344412 is a wasteful number, since it uses less digits than its factorization.

20412344412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465200 (or 1465189 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20412344412 its reverse (21444321402), we get a palindrome (41856665814).

The spelling of 20412344412 in words is "twenty billion, four hundred twelve million, three hundred forty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 43 54 81 86 108 129 162 172 258 324 387 516 774 1161 1548 2322 3483 4644 6966 13932 1465141 2930282 4395423 5860564 8790846 13186269 17581692 26372538 39558807 52745076 63001063 79117614 118676421 126002126 158235228 189003189 237352842 252004252 378006378 474705684 567009567 756012756 1134019134 1701028701 2268038268 3402057402 5103086103 6804114804 10206172206 20412344412