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2220331432 = 231125231039
BaseRepresentation
bin1000010001010111…
…1001000110101000
312201201221112010111
42010111321012220
514021401101212
61004153224104
7106010335324
oct20425710650
95651845114
102220331432
11a3a356960
1251b702034
13294ccc8a7
14170c50984
15cedd5ea7
hex845791a8

2220331432 has 16 divisors (see below), whose sum is σ = 4541587200. Its totient is φ = 1009241520.

The previous prime is 2220331429. The next prime is 2220331433. The reversal of 2220331432 is 2341330222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2220331433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12615432 + ... + 12615607.

It is an arithmetic number, because the mean of its divisors is an integer number (283849200).

Almost surely, 22220331432 is an apocalyptic number.

2220331432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2220331432 is an abundant number, since it is smaller than the sum of its proper divisors (2321255768).

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

2220331432 is a wasteful number, since it uses less digits than its factorization.

2220331432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25231056 (or 25231052 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2220331432 is about 47120.3929525211. The cubic root of 2220331432 is about 1304.5856656972.

Adding to 2220331432 its reverse (2341330222), we get a palindrome (4561661654).

It can be divided in two parts, 22203 and 31432, that added together give a palindrome (53635).

The spelling of 2220331432 in words is "two billion, two hundred twenty million, three hundred thirty-one thousand, four hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 88 25231039 50462078 100924156 201848312 277541429 555082858 1110165716 2220331432