Search a number
-
+
22234711720 = 2351386349547
BaseRepresentation
bin10100101101010010…
…101100011010101000
32010101120112101102111
4110231102230122220
5331014041233340
614114155012104
71414665634264
oct245522543250
963346471374
1022234711720
11947aa08011
12438643a034
132134670a70
14110cddb0a4
158a2042aea
hex52d4ac6a8

22234711720 has 64 divisors (see below), whose sum is σ = 53939934720. Its totient is φ = 8200061184.

The previous prime is 22234711703. The next prime is 22234711727. The reversal of 22234711720 is 2711743222.

It is not an unprimeable number, because it can be changed into a prime (22234711727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423987 + ... + 473533.

It is an arithmetic number, because the mean of its divisors is an integer number (842811480).

Almost surely, 222234711720 is an apocalyptic number.

22234711720 is a gapful number since it is divisible by the number (20) 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 22234711720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26969967360).

22234711720 is an abundant number, since it is smaller than the sum of its proper divisors (31705223000).

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

22234711720 is a wasteful number, since it uses less digits than its factorization.

22234711720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50434 (or 50430 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 22234711720 in words is "twenty-two billion, two hundred thirty-four million, seven hundred eleven thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 863 1726 3452 4315 6904 8630 11219 17260 22438 34520 44876 49547 56095 89752 99094 112190 198188 224380 247735 396376 448760 495470 644111 990940 1288222 1981880 2576444 3220555 5152888 6441110 12882220 25764440 42759061 85518122 171036244 213795305 342072488 427590610 555867793 855181220 1111735586 1710362440 2223471172 2779338965 4446942344 5558677930 11117355860 22234711720