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229886669 = 317415699
BaseRepresentation
bin11011011001111…
…00101011001101
3121000120110020002
431230330223031
5432322333134
634451134045
75461001345
oct1554745315
9530513202
10229886669
11108846291
1264ba4325
133881c81c
1422761d25
15152ae87e
hexdb3cacd

229886669 has 4 divisors (see below), whose sum is σ = 237302400. Its totient is φ = 222470940.

The previous prime is 229886639. The next prime is 229886687. The reversal of 229886669 is 966688922.

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 229886669 - 28 = 229886413 is a prime.

It is a super-2 number, since 2×2298866692 = 105695761167831122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229886639) 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, 3707819 + ... + 3707880.

It is an arithmetic number, because the mean of its divisors is an integer number (59325600).

Almost surely, 2229886669 is an apocalyptic number.

It is an amenable number.

229886669 is a deficient number, since it is larger than the sum of its proper divisors (7415731).

229886669 is an equidigital number, since it uses as much as digits as its factorization.

229886669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415730.

The product of its digits is 4478976, while the sum is 56.

The square root of 229886669 is about 15162.0140152949. The cubic root of 229886669 is about 612.5919175672.

The spelling of 229886669 in words is "two hundred twenty-nine million, eight hundred eighty-six thousand, six hundred sixty-nine".

Divisors: 1 31 7415699 229886669