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2226978907 = 10313215939
BaseRepresentation
bin1000010010111101…
…0000000001011011
312202012110020202021
42010233100001123
514030101311112
61004551515311
7106121002606
oct20457200133
95665406667
102226978907
11a4308723a
12521988b37
132964b94ca
14171aa133d
15d079a907
hex84bd005b

2226978907 has 4 divisors (see below), whose sum is σ = 2227205160. Its totient is φ = 2226752656.

The previous prime is 2226978881. The next prime is 2226978913. The reversal of 2226978907 is 7098796222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2226978907 - 27 = 2226978779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2226978947) 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, 97657 + ... + 118282.

It is an arithmetic number, because the mean of its divisors is an integer number (556801290).

Almost surely, 22226978907 is an apocalyptic number.

2226978907 is a deficient number, since it is larger than the sum of its proper divisors (226253).

2226978907 is a wasteful number, since it uses less digits than its factorization.

2226978907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226252.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 2226978907 is about 47190.8773705258. The cubic root of 2226978907 is about 1305.8863064094.

The spelling of 2226978907 in words is "two billion, two hundred twenty-six million, nine hundred seventy-eight thousand, nine hundred seven".

Divisors: 1 10313 215939 2226978907