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312422102 = 2156211051
BaseRepresentation
bin10010100111110…
…010111011010110
3210202212200112222
4102213302323112
51114440001402
651000142342
710512354416
oct2247627326
9722780488
10312422102
11150399393
12887679b2
134c959c65
142d6c8646
151c6647a2
hex129f2ed6

312422102 has 4 divisors (see below), whose sum is σ = 468633156. Its totient is φ = 156211050.

The previous prime is 312422101. The next prime is 312422147. The reversal of 312422102 is 201224213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201224213 = 429746829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312422101) by changing a digit.

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 as a sum of consecutive naturals, namely, 78105524 + ... + 78105527.

It is an arithmetic number, because the mean of its divisors is an integer number (117158289).

Almost surely, 2312422102 is an apocalyptic number.

312422102 is a deficient number, since it is larger than the sum of its proper divisors (156211054).

312422102 is a wasteful number, since it uses less digits than its factorization.

312422102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156211053.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 312422102 is about 17675.4661041795. The cubic root of 312422102 is about 678.5480134086.

Adding to 312422102 its reverse (201224213), we get a palindrome (513646315).

The spelling of 312422102 in words is "three hundred twelve million, four hundred twenty-two thousand, one hundred two".

Divisors: 1 2 156211051 312422102