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311630104 = 23311256573
BaseRepresentation
bin10010100100110…
…001100100011000
3210201101110010201
4102210301210120
51114234130404
650531151544
710502545402
oct2244614430
9721343121
10311630104
1114a9a8345
12884455b4
134c740616
142d55db72
151c559ca4
hex12931918

311630104 has 16 divisors (see below), whose sum is σ = 603155520. Its totient is φ = 150788640.

The previous prime is 311630087. The next prime is 311630113. The reversal of 311630104 is 401036113.

It is a super-2 number, since 2×3116301042 = 194226643438101632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 628039 + ... + 628534.

It is an arithmetic number, because the mean of its divisors is an integer number (37697220).

Almost surely, 2311630104 is an apocalyptic number.

It is an amenable number.

311630104 is a deficient number, since it is larger than the sum of its proper divisors (291525416).

311630104 is a wasteful number, since it uses less digits than its factorization.

311630104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256610 (or 1256606 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 311630104 is about 17653.0480087717. The cubic root of 311630104 is about 677.9741493727.

Adding to 311630104 its reverse (401036113), we get a palindrome (712666217).

The spelling of 311630104 in words is "three hundred eleven million, six hundred thirty thousand, one hundred four".

Divisors: 1 2 4 8 31 62 124 248 1256573 2513146 5026292 10052584 38953763 77907526 155815052 311630104