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9000869 = 20634363
BaseRepresentation
bin100010010101…
…011110100101
3121221021212112
4202111132211
54301011434
6520530405
7136335413
oct42253645
917837775
109000869
115098539
123020a05
131b31b77
1412a42b3
15bcbdce
hex8957a5

9000869 has 4 divisors (see below), whose sum is σ = 9007296. Its totient is φ = 8994444.

The previous prime is 9000841. The next prime is 9000877. The reversal of 9000869 is 9680009.

It is a happy number.

9000869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9680009 = 13770657.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9000869 is a prime.

It is a super-2 number, since 2×90008692 = 162031285510322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119 + ... + 4244.

It is an arithmetic number, because the mean of its divisors is an integer number (2251824).

Almost surely, 29000869 is an apocalyptic number.

It is an amenable number.

9000869 is a deficient number, since it is larger than the sum of its proper divisors (6427).

9000869 is a wasteful number, since it uses less digits than its factorization.

9000869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6426.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 9000869 is about 3000.1448298374. The cubic root of 9000869 is about 208.0150768780.

The spelling of 9000869 in words is "nine million, eight hundred sixty-nine", and thus it is an aban number.

Divisors: 1 2063 4363 9000869