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312212054 = 27112717481
BaseRepresentation
bin10010100110111…
…111101001010110
3210202111000102102
4102212333221112
51114411241204
650551442102
710510521140
oct2246775126
9722430372
10312212054
111502655a0
1288686332
134c8b547b
142d671c90
151c62241e
hex129bfa56

312212054 has 32 divisors (see below), whose sum is σ = 586109952. Its totient is φ = 121176000.

The previous prime is 312212003. The next prime is 312212077. The reversal of 312212054 is 450212213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37994 + ... + 45474.

It is an arithmetic number, because the mean of its divisors is an integer number (18315936).

Almost surely, 2312212054 is an apocalyptic number.

312212054 is a deficient number, since it is larger than the sum of its proper divisors (273897898).

312212054 is a wasteful number, since it uses less digits than its factorization.

312212054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 312212054 is about 17669.5233099255. The cubic root of 312212054 is about 678.3959119135.

Adding to 312212054 its reverse (450212213), we get a palindrome (762424267).

The spelling of 312212054 in words is "three hundred twelve million, two hundred twelve thousand, fifty-four".

Divisors: 1 2 7 11 14 22 77 154 271 542 1897 2981 3794 5962 7481 14962 20867 41734 52367 82291 104734 164582 576037 1152074 2027351 4054702 14191457 22300861 28382914 44601722 156106027 312212054