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312421711 = 7832691999
BaseRepresentation
bin10010100111110…
…010110101001111
3210202212200000111
4102213302311033
51114434443321
651000140451
710512353320
oct2247626517
9722780014
10312421711
11150399068
1288767727
134c959a24
142d6c8447
151c6645e1
hex129f2d4f

312421711 has 16 divisors (see below), whose sum is σ = 362880000. Its totient is φ = 263448288.

The previous prime is 312421663. The next prime is 312421717. The reversal of 312421711 is 117124213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 312421711 - 211 = 312419663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312421717) 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 in 15 ways as a sum of consecutive naturals, for example, 155290 + ... + 157288.

It is an arithmetic number, because the mean of its divisors is an integer number (22680000).

Almost surely, 2312421711 is an apocalyptic number.

312421711 is a deficient number, since it is larger than the sum of its proper divisors (50458289).

312421711 is a wasteful number, since it uses less digits than its factorization.

312421711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358.

The product of its digits is 336, while the sum is 22.

The square root of 312421711 is about 17675.4550436474. The cubic root of 312421711 is about 678.5477303382.

Adding to 312421711 its reverse (117124213), we get a palindrome (429545924).

The spelling of 312421711 in words is "three hundred twelve million, four hundred twenty-one thousand, seven hundred eleven".

Divisors: 1 7 83 269 581 1883 1999 13993 22327 156289 165917 537731 1161419 3764117 44631673 312421711