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222020020 = 22579831693
BaseRepresentation
bin11010011101111…
…00000110110100
3120110202210012201
431032330012310
5423314120040
634010354244
75334065455
oct1516740664
9513683181
10222020020
11104362a22
126242b984
1336cc6cc1
14216b512c
1514758a9a
hexd3bc1b4

222020020 has 48 divisors (see below), whose sum is σ = 478114560. Its totient is φ = 86576256.

The previous prime is 222020011. The next prime is 222020033. The reversal of 222020020 is 20020222.

222020020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 222019979 and 222020006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130294 + ... + 131986.

It is an arithmetic number, because the mean of its divisors is an integer number (9960720).

Almost surely, 2222020020 is an apocalyptic number.

222020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222020020 is an abundant number, since it is smaller than the sum of its proper divisors (256094540).

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

222020020 is a wasteful number, since it uses less digits than its factorization.

222020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1862 counting only the distinct ones).

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

The square root of 222020020 is about 14900.3362378169. The cubic root of 222020020 is about 605.5230956175.

Adding to 222020020 its reverse (20020222), we get a palindrome (242040242).

The spelling of 222020020 in words is "two hundred twenty-two million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 79 83 158 166 316 332 395 415 790 830 1580 1660 1693 3386 6557 6772 8465 13114 16930 26228 32785 33860 65570 131140 133747 140519 267494 281038 534988 562076 668735 702595 1337470 1405190 2674940 2810380 11101001 22202002 44404004 55505005 111010010 222020020