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311004422 = 21491043639
BaseRepresentation
bin10010100010011…
…000110100000110
3210200012122212022
4102202120310012
51114104120142
650505523142
710464331301
oct2242306406
9720178768
10311004422
1114a610253
12881a34b2
134c5818b1
142d439b38
151c4846d2
hex12898d06

311004422 has 8 divisors (see below), whose sum is σ = 469638000. Its totient is φ = 154458424.

The previous prime is 311004401. The next prime is 311004427. The reversal of 311004422 is 224400113.

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 311004422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311004427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521522 + ... + 522117.

It is an arithmetic number, because the mean of its divisors is an integer number (58704750).

Almost surely, 2311004422 is an apocalyptic number.

311004422 is a deficient number, since it is larger than the sum of its proper divisors (158633578).

311004422 is a wasteful number, since it uses less digits than its factorization.

311004422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043790.

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

The square root of 311004422 is about 17635.3174624105. The cubic root of 311004422 is about 677.5201063372.

Adding to 311004422 its reverse (224400113), we get a palindrome (535404535).

The spelling of 311004422 in words is "three hundred eleven million, four thousand, four hundred twenty-two".

Divisors: 1 2 149 298 1043639 2087278 155502211 311004422