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3120311311 = 131009237883
BaseRepresentation
bin1011100111111100…
…0010110000001111
322001110102020102121
42321333002300033
522342244430221
61233343033411
7140216131345
oct27177026017
98043366377
103120311311
111361375087
12730b9b867
133a95ba070
142185a3995
15133e0ba41
hexb9fc2c0f

3120311311 has 8 divisors (see below), whose sum is σ = 3363679760. Its totient is φ = 2877420672.

The previous prime is 3120311303. The next prime is 3120311321. The reversal of 3120311311 is 1131130213.

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

It is a cyclic number.

It is not a de Polignac number, because 3120311311 - 23 = 3120311303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120311321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105825 + ... + 132058.

It is an arithmetic number, because the mean of its divisors is an integer number (420459970).

Almost surely, 23120311311 is an apocalyptic number.

3120311311 is a deficient number, since it is larger than the sum of its proper divisors (243368449).

3120311311 is a wasteful number, since it uses less digits than its factorization.

3120311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238905.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 3120311311 is about 55859.7467860355. The cubic root of 3120311311 is about 1461.2773132574.

Adding to 3120311311 its reverse (1131130213), we get a palindrome (4251441524).

The spelling of 3120311311 in words is "three billion, one hundred twenty million, three hundred eleven thousand, three hundred eleven".

Divisors: 1 13 1009 13117 237883 3092479 240023947 3120311311