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112880001 = 3132222643
BaseRepresentation
bin1101011101001…
…10100110000001
321212101220020210
412232212212001
5212344130001
615111224333
72540315133
oct656464601
9255356223
10112880001
1158799463
12319780a9
131a503200
1410dc5053
159d9add6
hex6ba6981

112880001 has 12 divisors (see below), whose sum is σ = 162975408. Its totient is φ = 69464304.

The previous prime is 112879997. The next prime is 112880023. The reversal of 112880001 is 100088211.

It is not a de Polignac number, because 112880001 - 22 = 112879997 is a prime.

It is the 10625-th Hogben number.

It is a self number, because there is not a number n which added to its sum of digits gives 112880001.

It is not an unprimeable number, because it can be changed into a prime (112880701) by changing a digit.

It is a nontrivial repunit in base 10624.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110815 + ... + 111828.

It is an arithmetic number, because the mean of its divisors is an integer number (13581284).

Almost surely, 2112880001 is an apocalyptic number.

It is an amenable number.

112880001 is a deficient number, since it is larger than the sum of its proper divisors (50095407).

112880001 is a wasteful number, since it uses less digits than its factorization.

112880001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222672 (or 222659 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 112880001 is about 10624.5000352958. The cubic root of 112880001 is about 483.2876176606.

The spelling of 112880001 in words is "one hundred twelve million, eight hundred eighty thousand, one".

Divisors: 1 3 13 39 169 507 222643 667929 2894359 8683077 37626667 112880001