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223997083 = 1713176299
BaseRepresentation
bin11010101100111…
…10110010011011
3120121111020020021
431112132302123
5424320401313
634121011311
75356641502
oct1526366233
9517436207
10223997083
11105493362
1263023b37
1337539b6b
1421a6b839
15149e978d
hexd59ec9b

223997083 has 4 divisors (see below), whose sum is σ = 237173400. Its totient is φ = 210820768.

The previous prime is 223997051. The next prime is 223997089. The reversal of 223997083 is 380799322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 380799322 = 2190399661.

It is a cyclic number.

It is not a de Polignac number, because 223997083 - 25 = 223997051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223997089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6588133 + ... + 6588166.

It is an arithmetic number, because the mean of its divisors is an integer number (59293350).

Almost surely, 2223997083 is an apocalyptic number.

223997083 is a deficient number, since it is larger than the sum of its proper divisors (13176317).

223997083 is a wasteful number, since it uses less digits than its factorization.

223997083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176316.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 223997083 is about 14966.5320966482. The cubic root of 223997083 is about 607.3151581345.

The spelling of 223997083 in words is "two hundred twenty-three million, nine hundred ninety-seven thousand, eighty-three".

Divisors: 1 17 13176299 223997083