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213713213 = 797314747
BaseRepresentation
bin11001011110100…
…00000100111101
3112220010202102012
430233100010331
5414202310323
633112341005
75203350410
oct1457200475
9486122365
10213713213
11aa6a999a
125b6a4765
133537902c
1420551b77
1513b67678
hexcbd013d

213713213 has 8 divisors (see below), whose sum is σ = 246762432. Its totient is φ = 181293696.

The previous prime is 213713207. The next prime is 213713231. The reversal of 213713213 is 312317312.

213713213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213713213 - 214 = 213696829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213713243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156695 + ... + 158052.

It is an arithmetic number, because the mean of its divisors is an integer number (30845304).

Almost surely, 2213713213 is an apocalyptic number.

It is an amenable number.

213713213 is a deficient number, since it is larger than the sum of its proper divisors (33049219).

213713213 is an equidigital number, since it uses as much as digits as its factorization.

213713213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314851.

The product of its digits is 756, while the sum is 23.

The square root of 213713213 is about 14618.9333742240. The cubic root of 213713213 is about 597.8750880958.

The spelling of 213713213 in words is "two hundred thirteen million, seven hundred thirteen thousand, two hundred thirteen".

Divisors: 1 7 97 679 314747 2203229 30530459 213713213