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4889990609 = 71574449491
BaseRepresentation
bin1001000110111011…
…10101010111010001
3110121210101021001022
410203131311113101
540003314144414
62125121245225
7232115143250
oct44335652721
913553337038
104889990609
11208a2aa359
12b45793815
135cc12218a
14345626797
151d947618e
hex1237755d1

4889990609 has 8 divisors (see below), whose sum is σ = 5624157888. Its totient is φ = 4164722640.

The previous prime is 4889990593. The next prime is 4889990617. The reversal of 4889990609 is 9060999884.

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 4889990609 - 24 = 4889990593 is a prime.

It is a super-2 number, since 2×48899906092 = 47824016312216381762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4889990669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2223647 + ... + 2225844.

It is an arithmetic number, because the mean of its divisors is an integer number (703019736).

Almost surely, 24889990609 is an apocalyptic number.

It is an amenable number.

4889990609 is a deficient number, since it is larger than the sum of its proper divisors (734167279).

4889990609 is a wasteful number, since it uses less digits than its factorization.

4889990609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449655.

The product of its (nonzero) digits is 10077696, while the sum is 62.

The square root of 4889990609 is about 69928.4678010322. The cubic root of 4889990609 is about 1697.3419371117.

The spelling of 4889990609 in words is "four billion, eight hundred eighty-nine million, nine hundred ninety thousand, six hundred nine".

Divisors: 1 7 157 1099 4449491 31146437 698570087 4889990609