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2215213242 = 231133563837
BaseRepresentation
bin1000010000001001…
…0111100010111010
312201101022111021220
42010002113202322
514014043310432
61003451412510
7105616000434
oct20402274272
95641274256
102215213242
11a37480550
12519a54136
13293c2a088
141702bb654
15ce72472c
hex840978ba

2215213242 has 16 divisors (see below), whose sum is σ = 4833192672. Its totient is φ = 671276720.

The previous prime is 2215213229. The next prime is 2215213243. The reversal of 2215213242 is 2423125122.

It is not an unprimeable number, because it can be changed into a prime (2215213243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16781853 + ... + 16781984.

It is an arithmetic number, because the mean of its divisors is an integer number (302074542).

Almost surely, 22215213242 is an apocalyptic number.

2215213242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2215213242 is an abundant number, since it is smaller than the sum of its proper divisors (2617979430).

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

2215213242 is a wasteful number, since it uses less digits than its factorization.

2215213242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33563853.

The product of its digits is 1920, while the sum is 24.

The square root of 2215213242 is about 47066.0519058057. The cubic root of 2215213242 is about 1303.5824739557.

Adding to 2215213242 its reverse (2423125122), we get a palindrome (4638338364).

The spelling of 2215213242 in words is "two billion, two hundred fifteen million, two hundred thirteen thousand, two hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 33563837 67127674 100691511 201383022 369202207 738404414 1107606621 2215213242