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212233133 = 7283710687
BaseRepresentation
bin11001010011001…
…10101110101101
3112210100120010102
430221212232231
5413312430013
633020520445
75154644330
oct1451465655
9483316112
10212233133
11a9888992
125b0b0125
1334c7b448
1420288617
1513973d58
hexca66bad

212233133 has 8 divisors (see below), whose sum is σ = 242660352. Its totient is φ = 181832976.

The previous prime is 212233103. The next prime is 212233141. The reversal of 212233133 is 331332212.

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 212233133 - 26 = 212233069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212233103) 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, 14516 + ... + 25202.

It is an arithmetic number, because the mean of its divisors is an integer number (30332544).

Almost surely, 2212233133 is an apocalyptic number.

It is an amenable number.

212233133 is a deficient number, since it is larger than the sum of its proper divisors (30427219).

212233133 is a wasteful number, since it uses less digits than its factorization.

212233133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13531.

The product of its digits is 648, while the sum is 20.

The square root of 212233133 is about 14568.2233988912. The cubic root of 212233133 is about 596.4916863939.

Adding to 212233133 its reverse (331332212), we get a palindrome (543565345).

The spelling of 212233133 in words is "two hundred twelve million, two hundred thirty-three thousand, one hundred thirty-three".

Divisors: 1 7 2837 10687 19859 74809 30319019 212233133