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3112112123 = 17808722637
BaseRepresentation
bin1011100101111111…
…0000111111111011
322000212222200020222
42321133300333323
522333200041443
61232451210255
7140056342121
oct27137607773
98025880228
103112112123
11135778499a
1272a2a698b
133a79a9083
1421746b911
1513333c468
hexb97f0ffb

3112112123 has 8 divisors (see below), whose sum is σ = 3295730592. Its totient is φ = 2928555136.

The previous prime is 3112112063. The next prime is 3112112131. The reversal of 3112112123 is 3212112113.

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 3112112123 - 28 = 3112111867 is a prime.

It is a super-2 number, since 2×31121121232 = 19370483732247134258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112112153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126161 + ... + 148797.

It is an arithmetic number, because the mean of its divisors is an integer number (411966324).

Almost surely, 23112112123 is an apocalyptic number.

3112112123 is a deficient number, since it is larger than the sum of its proper divisors (183618469).

3112112123 is a wasteful number, since it uses less digits than its factorization.

3112112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30741.

The product of its digits is 72, while the sum is 17.

The square root of 3112112123 is about 55786.3076659497. The cubic root of 3112112123 is about 1459.9962661755.

Adding to 3112112123 its reverse (3212112113), we get a palindrome (6324224236).

The spelling of 3112112123 in words is "three billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-three".

Divisors: 1 17 8087 22637 137479 384829 183065419 3112112123