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3123212213 = 11311912953
BaseRepresentation
bin1011101000101000…
…0110111110110101
322001122212121201102
42322022012332311
522344020242323
61233525135445
7140252602652
oct27212067665
98048777642
103123212213
111362a76620
12731b5a585
133aa094584
14218b1ac29
151342d1328
hexba286fb5

3123212213 has 8 divisors (see below), whose sum is σ = 3418099776. Its totient is φ = 2830151200.

The previous prime is 3123212203. The next prime is 3123212219. The reversal of 3123212213 is 3122123213.

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 3123212213 - 212 = 3123208117 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 (3123212219) 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, 453056 + ... + 459897.

It is an arithmetic number, because the mean of its divisors is an integer number (427262472).

Almost surely, 23123212213 is an apocalyptic number.

It is an amenable number.

3123212213 is a deficient number, since it is larger than the sum of its proper divisors (294887563).

3123212213 is a wasteful number, since it uses less digits than its factorization.

3123212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913275.

The product of its digits is 432, while the sum is 20.

The square root of 3123212213 is about 55885.7066967932. The cubic root of 3123212213 is about 1461.7300148082.

Adding to 3123212213 its reverse (3122123213), we get a palindrome (6245335426).

The spelling of 3123212213 in words is "three billion, one hundred twenty-three million, two hundred twelve thousand, two hundred thirteen".

Divisors: 1 11 311 3421 912953 10042483 283928383 3123212213