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20223202912 = 2511463124087
BaseRepresentation
bin10010110101011001…
…011001011001100000
31221012101112011002021
4102311121121121200
5312404114443122
613142421231224
71314102250153
oct226531313140
957171464067
1020223202912
11863851a740
123b04862514
131ba39c7173
14d9bbc7c9a
157d565a1c7
hex4b5659660

20223202912 has 48 divisors (see below), whose sum is σ = 43528084992. Its totient is φ = 9172437120.

The previous prime is 20223202903. The next prime is 20223202913. The reversal of 20223202912 is 21920232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223202913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100933 + ... + 225019.

It is an arithmetic number, because the mean of its divisors is an integer number (906835104).

Almost surely, 220223202912 is an apocalyptic number.

20223202912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20223202912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21764042496).

20223202912 is an abundant number, since it is smaller than the sum of its proper divisors (23304882080).

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

20223202912 is a wasteful number, since it uses less digits than its factorization.

20223202912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124571 (or 124563 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 20223202912 in words is "twenty billion, two hundred twenty-three million, two hundred two thousand, nine hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 463 926 1852 3704 5093 7408 10186 14816 20372 40744 81488 124087 162976 248174 496348 992696 1364957 1985392 2729914 3970784 5459828 10919656 21839312 43678624 57452281 114904562 229809124 459618248 631975091 919236496 1263950182 1838472992 2527900364 5055800728 10111601456 20223202912