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23232002020 = 2253121208741
BaseRepresentation
bin10101101000101111…
…000011011111100100
32012222002002222112021
4111220233003133210
5340034343031040
614401142232524
71451465521213
oct255057033744
965862088467
1023232002020
11994194aa77
124604425744
13226316c776
1411a564107a
1590e88b24a
hex568bc37e4

23232002020 has 36 divisors (see below), whose sum is σ = 50411793852. Its totient is φ = 8993025600.

The previous prime is 23232001957. The next prime is 23232002111. The reversal of 23232002020 is 2020023232.

It can be written as a sum of positive squares in 2 ways, for example, as 3389335524 + 19842666496 = 58218^2 + 140864^2 .

It is a super-3 number, since 3×232320020203 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23232001985 and 23232002003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 585151 + ... + 623590.

It is an arithmetic number, because the mean of its divisors is an integer number (1400327607).

Almost surely, 223232002020 is an apocalyptic number.

23232002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23232002020 is an abundant number, since it is smaller than the sum of its proper divisors (27179791832).

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

23232002020 is a wasteful number, since it uses less digits than its factorization.

23232002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208812 (or 1208779 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 23232002020 its reverse (2020023232), we get a palindrome (25252025252).

The spelling of 23232002020 in words is "twenty-three billion, two hundred thirty-two million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 961 1922 3844 4805 9610 19220 1208741 2417482 4834964 6043705 12087410 24174820 37470971 74941942 149883884 187354855 374709710 749419420 1161600101 2323200202 4646400404 5808000505 11616001010 23232002020