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2122440412 = 221731212359
BaseRepresentation
bin111111010000001…
…1101111011011100
312110220202010220011
41332200131323130
513321321043122
6550335133004
7103411305631
oct17640357334
95426663804
102122440412
1199a075994
124b2974164
1327a947001
14161c4c188
15c64eb377
hex7e81dedc

2122440412 has 12 divisors (see below), whose sum is σ = 3932757360. Its totient is φ = 998795456.

The previous prime is 2122440403. The next prime is 2122440431. The reversal of 2122440412 is 2140442212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15606112 + ... + 15606247.

It is an arithmetic number, because the mean of its divisors is an integer number (327729780).

Almost surely, 22122440412 is an apocalyptic number.

It is an amenable number.

2122440412 is a deficient number, since it is larger than the sum of its proper divisors (1810316948).

2122440412 is a wasteful number, since it uses less digits than its factorization.

2122440412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31212380 (or 31212378 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2122440412 is about 46069.9512914872. The cubic root of 2122440412 is about 1285.1243980161.

Adding to 2122440412 its reverse (2140442212), we get a palindrome (4262882624).

The spelling of 2122440412 in words is "two billion, one hundred twenty-two million, four hundred forty thousand, four hundred twelve".

Divisors: 1 2 4 17 34 68 31212359 62424718 124849436 530610103 1061220206 2122440412