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22200202000 = 245311100101
BaseRepresentation
bin10100101011001111…
…000011001100010000
32010022011121002222201
4110223033003030100
5330431222431000
614110523212544
71414066413664
oct245317031420
963264532881
1022200202000
119462487389
124376977154
13212a47a202
1411085b68a4
1589dec796a
hex52b3c3310

22200202000 has 40 divisors (see below), whose sum is σ = 53680093272. Its totient is φ = 8880080000.

The previous prime is 22200201953. The next prime is 22200202001. The reversal of 22200202000 is 20200222.

It can be written as a sum of positive squares in 4 ways, for example, as 162205696 + 22037996304 = 12736^2 + 148452^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (22200202001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5548051 + ... + 5552050.

Almost surely, 222200202000 is an apocalyptic number.

22200202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200202000 is an abundant number, since it is smaller than the sum of its proper divisors (31479891272).

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

22200202000 is a wasteful number, since it uses less digits than its factorization.

22200202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100124 (or 11100108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 22200202000 its reverse (20200222), we get a palindrome (22220402222).

The spelling of 22200202000 in words is "twenty-two billion, two hundred million, two hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 11100101 22200202 44400404 55500505 88800808 111001010 177601616 222002020 277502525 444004040 555005050 888008080 1110010100 1387512625 2220020200 2775025250 4440040400 5550050500 11100101000 22200202000