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212310201 = 370770067
BaseRepresentation
bin11001010011110…
…01100010111001
3112210111110211210
430221321202321
5413322411301
633022313333
75155415115
oct1451714271
9483443753
10212310201
11a9930884
125b128849
1334ca754c
14202a8745
151398bad6
hexca798b9

212310201 has 4 divisors (see below), whose sum is σ = 283080272. Its totient is φ = 141540132.

The previous prime is 212310187. The next prime is 212310223. The reversal of 212310201 is 102013212.

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 212310201 - 213 = 212302009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212310101) 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, 35385031 + ... + 35385036.

It is an arithmetic number, because the mean of its divisors is an integer number (70770068).

Almost surely, 2212310201 is an apocalyptic number.

It is an amenable number.

212310201 is a deficient number, since it is larger than the sum of its proper divisors (70770071).

212310201 is an equidigital number, since it uses as much as digits as its factorization.

212310201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70770070.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 212310201 is about 14570.8682308228. The cubic root of 212310201 is about 596.5638787944.

Adding to 212310201 its reverse (102013212), we get a palindrome (314323413).

The spelling of 212310201 in words is "two hundred twelve million, three hundred ten thousand, two hundred one".

Divisors: 1 3 70770067 212310201