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9930489 = 34770429
BaseRepresentation
bin100101111000…
…011011111001
3200200112001220
4211320123321
510020233424
6552502253
7150256602
oct45703371
920615056
109930489
115672a18
1233aa989
13209903a
141466da9
15d12579
hex9786f9

9930489 has 8 divisors (see below), whose sum is σ = 13522560. Its totient is φ = 6479376.

The previous prime is 9930469. The next prime is 9930491. The reversal of 9930489 is 9840399.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9930489 - 28 = 9930233 is a prime.

It is a super-2 number, since 2×99304892 = 197229223558242, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9930489.

It is not an unprimeable number, because it can be changed into a prime (9930419) 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, 35074 + ... + 35355.

It is an arithmetic number, because the mean of its divisors is an integer number (1690320).

Almost surely, 29930489 is an apocalyptic number.

It is an amenable number.

9930489 is a deficient number, since it is larger than the sum of its proper divisors (3592071).

9930489 is a wasteful number, since it uses less digits than its factorization.

9930489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70479.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 9930489 is about 3151.2678400923. The cubic root of 9930489 is about 214.9431181775.

The spelling of 9930489 in words is "nine million, nine hundred thirty thousand, four hundred eighty-nine".

Divisors: 1 3 47 141 70429 211287 3310163 9930489