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1222140332 = 22743647869
BaseRepresentation
bin100100011011000…
…0110000110101100
310011011200011100202
41020312012012230
510000331442312
6321134413032
742200010230
oct11066060654
93134604322
101222140332
11577959136
122a1361178
13166276b7a
14b84545c0
15724609c2
hex48d861ac

1222140332 has 12 divisors (see below), whose sum is σ = 2444280720. Its totient is φ = 523774416.

The previous prime is 1222140331. The next prime is 1222140347. The reversal of 1222140332 is 2330412221.

1222140332 is an admirable number.

It is a super-2 number, since 2×12221403322 = 2987253982202140448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222140331) 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 3 ways as a sum of consecutive naturals, for example, 21823907 + ... + 21823962.

It is an arithmetic number, because the mean of its divisors is an integer number (203690060).

Almost surely, 21222140332 is an apocalyptic number.

It is an amenable number.

1222140332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1222140332 is a wasteful number, since it uses less digits than its factorization.

1222140332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43647880 (or 43647878 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1222140332 is about 34959.1237304370. The cubic root of 1222140332 is about 1069.1542307654.

Adding to 1222140332 its reverse (2330412221), we get a palindrome (3552552553).

The spelling of 1222140332 in words is "one billion, two hundred twenty-two million, one hundred forty thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 43647869 87295738 174591476 305535083 611070166 1222140332