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2215323132 = 2231116782751
BaseRepresentation
bin1000010000001011…
…0010010111111100
312201101112002000220
42010002302113330
514014110320012
61003454021340
7105616636011
oct20402622774
95641462026
102215323132
11a37546070
12519aa7850
13293c680b9
14170309708
15ce74708c
hex840b25fc

2215323132 has 24 divisors (see below), whose sum is σ = 5639004672. Its totient is φ = 671310000.

The previous prime is 2215323113. The next prime is 2215323157. The reversal of 2215323132 is 2313235122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8391244 + ... + 8391507.

It is an arithmetic number, because the mean of its divisors is an integer number (234958528).

Almost surely, 22215323132 is an apocalyptic number.

2215323132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2215323132 is an abundant number, since it is smaller than the sum of its proper divisors (3423681540).

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

2215323132 is a wasteful number, since it uses less digits than its factorization.

2215323132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16782769 (or 16782767 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 2215323132 is about 47067.2192932618. The cubic root of 2215323132 is about 1303.6040291882.

Adding to 2215323132 its reverse (2313235122), we get a palindrome (4528558254).

The spelling of 2215323132 in words is "two billion, two hundred fifteen million, three hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 16782751 33565502 50348253 67131004 100696506 184610261 201393012 369220522 553830783 738441044 1107661566 2215323132