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3111243112 = 231819121379
BaseRepresentation
bin1011100101110001…
…1100110101101000
322000211100112012101
42321130130311220
522332434234422
61232420423144
7140046062425
oct27134346550
98024315171
103111243112
111357240aaa
12729b47ab4
133a7763673
142172c2d4c
15133219c27
hexb971cd68

3111243112 has 16 divisors (see below), whose sum is σ = 5834174400. Its totient is φ = 1555463280.

The previous prime is 3111243101. The next prime is 3111243169. The reversal of 3111243112 is 2113421113.

It is a self number, because there is not a number n which added to its sum of digits gives 3111243112.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 134839 + ... + 156217.

It is an arithmetic number, because the mean of its divisors is an integer number (364635900).

Almost surely, 23111243112 is an apocalyptic number.

It is an amenable number.

3111243112 is a deficient number, since it is larger than the sum of its proper divisors (2722931288).

3111243112 is a wasteful number, since it uses less digits than its factorization.

3111243112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39576 (or 39572 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 3111243112 is about 55778.5183740121. The cubic root of 3111243112 is about 1459.8603594475.

Adding to 3111243112 its reverse (2113421113), we get a palindrome (5224664225).

The spelling of 3111243112 in words is "three billion, one hundred eleven million, two hundred forty-three thousand, one hundred twelve".

Divisors: 1 2 4 8 18191 21379 36382 42758 72764 85516 145528 171032 388905389 777810778 1555621556 3111243112