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312210106 = 21312008081
BaseRepresentation
bin10010100110111…
…111001010111010
3210202110220202021
4102212333022322
51114411210411
650551425054
710510512355
oct2246771272
9722426667
10312210106
1115026408a
128868518a
134c8b4610
142d67129c
151c621a71
hex129bf2ba

312210106 has 8 divisors (see below), whose sum is σ = 504339444. Its totient is φ = 144096960.

The previous prime is 312210091. The next prime is 312210113. The reversal of 312210106 is 601012213.

It can be written as a sum of positive squares in 2 ways, for example, as 305935081 + 6275025 = 17491^2 + 2505^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 312210106.

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 3 ways as a sum of consecutive naturals, for example, 6004015 + ... + 6004066.

Almost surely, 2312210106 is an apocalyptic number.

312210106 is a deficient number, since it is larger than the sum of its proper divisors (192129338).

312210106 is a wasteful number, since it uses less digits than its factorization.

312210106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008096.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 312210106 is about 17669.4681866773. The cubic root of 312210106 is about 678.3945009942.

Adding to 312210106 its reverse (601012213), we get a palindrome (913222319).

The spelling of 312210106 in words is "three hundred twelve million, two hundred ten thousand, one hundred six".

Divisors: 1 2 13 26 12008081 24016162 156105053 312210106