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210212313 = 370070771
BaseRepresentation
bin11001000011110…
…01010111011001
3112122112220002020
430201321113121
5412303243223
632505325053
75131526613
oct1441712731
9478486066
10210212313
11a8728693
125a496789
13347216ac
141dcbddb3
15136c51e3
hexc8795d9

210212313 has 4 divisors (see below), whose sum is σ = 280283088. Its totient is φ = 140141540.

The previous prime is 210212311. The next prime is 210212347. The reversal of 210212313 is 313212012.

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 210212313 - 21 = 210212311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210212292 and 210212301.

It is not an unprimeable number, because it can be changed into a prime (210212311) 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, 35035383 + ... + 35035388.

It is an arithmetic number, because the mean of its divisors is an integer number (70070772).

Almost surely, 2210212313 is an apocalyptic number.

It is an amenable number.

210212313 is a deficient number, since it is larger than the sum of its proper divisors (70070775).

210212313 is an equidigital number, since it uses as much as digits as its factorization.

210212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70070774.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 210212313 is about 14498.7003900350. The cubic root of 210212313 is about 594.5924408080.

Adding to 210212313 its reverse (313212012), we get a palindrome (523424325).

The spelling of 210212313 in words is "two hundred ten million, two hundred twelve thousand, three hundred thirteen".

Divisors: 1 3 70070771 210212313