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4400022400220 = 2251012178228911
BaseRepresentation
bin100000000000111010111…
…0001011010110011011100
3120120122020010102010020202
41000001311301122303130
51034042221213301340
613205201542203032
7632614441210646
oct100016561326334
916518203363222
104400022400220
111447047a33647
125b0906723478
1325bbc6c7a835
14112d68493896
15796c482ac15
hex40075c5acdc

4400022400220 has 24 divisors (see below), whose sum is σ = 9331532659008. Its totient is φ = 1742583128000.

The previous prime is 4400022400201. The next prime is 4400022400231. The reversal of 4400022400220 is 220042200044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4400022400192 and 4400022400201.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1089112436 + ... + 1089116475.

It is an arithmetic number, because the mean of its divisors is an integer number (388813860792).

Almost surely, 24400022400220 is an apocalyptic number.

It is an amenable number.

4400022400220 is an abundant number, since it is smaller than the sum of its proper divisors (4931510258788).

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

4400022400220 is a wasteful number, since it uses less digits than its factorization.

4400022400220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178229021 (or 2178229019 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 4400022400220 its reverse (220042200044), we get a palindrome (4620064600264).

The spelling of 4400022400220 in words is "four trillion, four hundred billion, twenty-two million, four hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 2178228911 4356457822 8712915644 10891144555 21782289110 43564578220 220001120011 440002240022 880004480044 1100005600055 2200011200110 4400022400220