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212234413 = 1187178799
BaseRepresentation
bin11001010011001…
…11000010101101
3112210100121212211
430221213002231
5413313000123
633020530421
75154651136
oct1451470255
9483317784
10212234413
11a9889946
125b0b0a11
1334c7bbc1
1420288c8d
151397440d
hexca670ad

212234413 has 4 divisors (see below), whose sum is σ = 212414400. Its totient is φ = 212054428.

The previous prime is 212234411. The next prime is 212234423. The reversal of 212234413 is 314432212.

212234413 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 a cyclic number.

It is not a de Polignac number, because 212234413 - 21 = 212234411 is a prime.

It is a super-2 number, since 2×2122344132 = 90086892122909138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212234411) 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, 88213 + ... + 90586.

It is an arithmetic number, because the mean of its divisors is an integer number (53103600).

Almost surely, 2212234413 is an apocalyptic number.

It is an amenable number.

212234413 is a deficient number, since it is larger than the sum of its proper divisors (179987).

212234413 is a wasteful number, since it uses less digits than its factorization.

212234413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179986.

The product of its digits is 1152, while the sum is 22.

The square root of 212234413 is about 14568.2673300568. The cubic root of 212234413 is about 596.4928855592.

Adding to 212234413 its reverse (314432212), we get a palindrome (526666625).

The spelling of 212234413 in words is "two hundred twelve million, two hundred thirty-four thousand, four hundred thirteen".

Divisors: 1 1187 178799 212234413