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214302406469 = 277773654897
BaseRepresentation
bin1100011110010101101…
…0110011011101000101
3202111011002210012202112
43013211122303131011
512002342404001334
6242241004150405
721324420254024
oct3074532633505
9674132705675
10214302406469
1182981137938
1235649538405
131729348c298
14a52d7d68bb
155893dde4ce
hex31e56b3745

214302406469 has 4 divisors (see below), whose sum is σ = 215076061644. Its totient is φ = 213528751296.

The previous prime is 214302406457. The next prime is 214302406529. The reversal of 214302406469 is 964604203412.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87520122244 + 126782284225 = 295838^2 + 356065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-214302406469 is a prime.

It is a super-2 number, since 2×2143024064692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214302406429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386827172 + ... + 386827725.

It is an arithmetic number, because the mean of its divisors is an integer number (53769015411).

Almost surely, 2214302406469 is an apocalyptic number.

It is an amenable number.

214302406469 is a deficient number, since it is larger than the sum of its proper divisors (773655175).

214302406469 is an equidigital number, since it uses as much as digits as its factorization.

214302406469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773655174.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 214302406469 in words is "two hundred fourteen billion, three hundred two million, four hundred six thousand, four hundred sixty-nine".

Divisors: 1 277 773654897 214302406469