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22000000220 = 22511175882353
BaseRepresentation
bin10100011111010011…
…010101110011011100
32002210012212210202222
4110133103111303130
5330024000001340
614035012204512
71406115626222
oct243723256334
962705783688
1022000000220
11936a476870
12431b909738
1320c7b52113
1410c9b80b12
1588b62d8b5
hex51f4d5cdc

22000000220 has 48 divisors (see below), whose sum is σ = 53364715488. Its totient is φ = 7529410560.

The previous prime is 22000000199. The next prime is 22000000229. The reversal of 22000000220 is 2200000022.

It is a junction number, because it is equal to n+sod(n) for n = 22000000198 and 22000000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000000229) 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, 2937437 + ... + 2944916.

It is an arithmetic number, because the mean of its divisors is an integer number (1111764906).

Almost surely, 222000000220 is an apocalyptic number.

22000000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000000220 is an abundant number, since it is smaller than the sum of its proper divisors (31364715268).

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

22000000220 is a wasteful number, since it uses less digits than its factorization.

22000000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882390 (or 5882388 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 22000000220 its reverse (2200000022), we get a palindrome (24200000242).

It can be divided in two parts, 220000002 and 20, that added together give a palindrome (220000022).

The spelling of 22000000220 in words is "twenty-two billion, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 11 17 20 22 34 44 55 68 85 110 170 187 220 340 374 748 935 1870 3740 5882353 11764706 23529412 29411765 58823530 64705883 100000001 117647060 129411766 200000002 258823532 323529415 400000004 500000005 647058830 1000000010 1100000011 1294117660 2000000020 2200000022 4400000044 5500000055 11000000110 22000000220