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312124142 = 21114187461
BaseRepresentation
bin10010100110101…
…010001011101110
3210202022112211102
4102212222023232
51114400433032
650545523102
710510003631
oct2246521356
9722275742
10312124142
11150205540
1288643492
134c884455
142d64bc18
151c606362
hex129aa2ee

312124142 has 8 divisors (see below), whose sum is σ = 510748632. Its totient is φ = 141874600.

The previous prime is 312124139. The next prime is 312124159. The reversal of 312124142 is 241421213.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7093709 + ... + 7093752.

It is an arithmetic number, because the mean of its divisors is an integer number (63843579).

Almost surely, 2312124142 is an apocalyptic number.

312124142 is a deficient number, since it is larger than the sum of its proper divisors (198624490).

312124142 is a wasteful number, since it uses less digits than its factorization.

312124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14187474.

The product of its digits is 384, while the sum is 20.

The square root of 312124142 is about 17667.0354615595. The cubic root of 312124142 is about 678.3322321813.

Adding to 312124142 its reverse (241421213), we get a palindrome (553545355).

The spelling of 312124142 in words is "three hundred twelve million, one hundred twenty-four thousand, one hundred forty-two".

Divisors: 1 2 11 22 14187461 28374922 156062071 312124142