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20323304000 = 26532540413
BaseRepresentation
bin10010111011010111…
…010000001001000000
31221110100212210221222
4102323113100021000
5313110231212000
613200354534212
71316426143106
oct227327201100
957410783858
1020323304000
118689a8010a
123b32297368
131bbb67498c
14dab203c76
157de32ea85
hex4bb5d0240

20323304000 has 56 divisors (see below), whose sum is σ = 50330682168. Its totient is φ = 8129318400.

The previous prime is 20323303997. The next prime is 20323304069. The reversal of 20323304000 is 40332302.

It can be written as a sum of positive squares in 4 ways, for example, as 635846656 + 19687457344 = 25216^2 + 140312^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20323304000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262207 + ... + 1278206.

Almost surely, 220323304000 is an apocalyptic number.

20323304000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323304000 is an abundant number, since it is smaller than the sum of its proper divisors (30007378168).

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

20323304000 is an equidigital number, since it uses as much as digits as its factorization.

20323304000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540440 (or 2540420 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 20323304000 its reverse (40332302), we get a palindrome (20363636302).

The spelling of 20323304000 in words is "twenty billion, three hundred twenty-three million, three hundred four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 800 1000 1600 2000 4000 8000 2540413 5080826 10161652 12702065 20323304 25404130 40646608 50808260 63510325 81293216 101616520 127020650 162586432 203233040 254041300 317551625 406466080 508082600 635103250 812932160 1016165200 1270206500 2032330400 2540413000 4064660800 5080826000 10161652000 20323304000