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213080169 = 371026723
BaseRepresentation
bin11001011001101…
…01100001101001
3112211221121001010
430230311201221
5414022031134
633051014133
75165102661
oct1454654151
9484847033
10213080169
11aa307315
125b43a349
13351b6b53
14204291a1
1513a8ece9
hexcb35869

213080169 has 4 divisors (see below), whose sum is σ = 284106896. Its totient is φ = 142053444.

The previous prime is 213080129. The next prime is 213080207. The reversal of 213080169 is 961080312.

213080169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 213080169 - 211 = 213078121 is a prime.

It is a super-2 number, since 2×2130801692 = 90806316842137122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213080129) 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, 35513359 + ... + 35513364.

It is an arithmetic number, because the mean of its divisors is an integer number (71026724).

Almost surely, 2213080169 is an apocalyptic number.

It is an amenable number.

213080169 is a deficient number, since it is larger than the sum of its proper divisors (71026727).

213080169 is an equidigital number, since it uses as much as digits as its factorization.

213080169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71026726.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 213080169 is about 14597.2658056226. The cubic root of 213080169 is about 597.2841785145.

The spelling of 213080169 in words is "two hundred thirteen million, eighty thousand, one hundred sixty-nine".

Divisors: 1 3 71026723 213080169