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2223678137 = 4723470819
BaseRepresentation
bin1000010010001010…
…1010001010111001
312201222020112221112
42010202222022321
514023230200022
61004353050105
7106050644432
oct20442521271
95658215845
102223678137
11a4123232a
12520856935
13295901ca5
14171482489
15d03478e2
hex848aa2b9

2223678137 has 4 divisors (see below), whose sum is σ = 2224153680. Its totient is φ = 2223202596.

The previous prime is 2223678113. The next prime is 2223678151. The reversal of 2223678137 is 7318763222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2223678137 - 26 = 2223678073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2223678094 and 2223678103.

It is not an unprimeable number, because it can be changed into a prime (2223678187) 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, 230687 + ... + 240132.

It is an arithmetic number, because the mean of its divisors is an integer number (556038420).

Almost surely, 22223678137 is an apocalyptic number.

It is an amenable number.

2223678137 is a deficient number, since it is larger than the sum of its proper divisors (475543).

2223678137 is an equidigital number, since it uses as much as digits as its factorization.

2223678137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475542.

The product of its digits is 169344, while the sum is 41.

The square root of 2223678137 is about 47155.8918588123. The cubic root of 2223678137 is about 1305.2408038576.

The spelling of 2223678137 in words is "two billion, two hundred twenty-three million, six hundred seventy-eight thousand, one hundred thirty-seven".

Divisors: 1 4723 470819 2223678137