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6400112089 = 72397409817
BaseRepresentation
bin1011111010111100…
…11111010111011001
3121112000221101021111
411331132133113121
5101101412041324
62535024340321
7314413024630
oct57536372731
917460841244
106400112089
112794772a38
1212a74746a1
137acc49397
1444a002517
15276d1e794
hex17d79f5d9

6400112089 has 16 divisors (see below), whose sum is σ = 7711135488. Its totient is φ = 5193188352.

The previous prime is 6400112063. The next prime is 6400112093. The reversal of 6400112089 is 9802110046.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6400112089 - 29 = 6400111577 is a prime.

It is a super-2 number, since 2×64001120892 = 81922869503527887842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6400112089.

It is not an unprimeable number, because it can be changed into a prime (6400112029) 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 15 ways as a sum of consecutive naturals, for example, 189292 + ... + 220525.

It is an arithmetic number, because the mean of its divisors is an integer number (481945968).

Almost surely, 26400112089 is an apocalyptic number.

It is an amenable number.

6400112089 is a deficient number, since it is larger than the sum of its proper divisors (1311023399).

6400112089 is a wasteful number, since it uses less digits than its factorization.

6400112089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409944.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 6400112089 is about 80000.7005531827. The cubic root of 6400112089 is about 1856.6463723621.

The spelling of 6400112089 in words is "six billion, four hundred million, one hundred twelve thousand, eighty-nine".

Divisors: 1 7 23 97 161 679 2231 15617 409817 2868719 9425791 39752249 65980537 278265743 914301727 6400112089