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2213022120 = 233518441851
BaseRepresentation
bin1000001111101000…
…0000100110101000
312201020012011122020
42003322000212220
514013013201440
61003332424440
7105561243351
oct20372004650
95636164566
102213022120
11a36214301
12519178120
1329364095a
1416dcaad28
15ce4403d0
hex83e809a8

2213022120 has 32 divisors (see below), whose sum is σ = 6639066720. Its totient is φ = 590139200.

The previous prime is 2213022061. The next prime is 2213022121. The reversal of 2213022120 is 212203122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2213022120.

It is not an unprimeable number, because it can be changed into a prime (2213022121) 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, 9220806 + ... + 9221045.

It is an arithmetic number, because the mean of its divisors is an integer number (207470835).

Almost surely, 22213022120 is an apocalyptic number.

2213022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213022120 is an abundant number, since it is smaller than the sum of its proper divisors (4426044600).

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

2213022120 is a wasteful number, since it uses less digits than its factorization.

2213022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18441865 (or 18441861 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2213022120 is about 47042.7690511517. The cubic root of 2213022120 is about 1303.1525303203.

Adding to 2213022120 its reverse (212203122), we get a palindrome (2425225242).

The spelling of 2213022120 in words is "two billion, two hundred thirteen million, twenty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 18441851 36883702 55325553 73767404 92209255 110651106 147534808 184418510 221302212 276627765 368837020 442604424 553255530 737674040 1106511060 2213022120