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9979130 = 257142559
BaseRepresentation
bin100110000100…
…010011111010
3200202222210102
4212010103322
510023313010
6553515402
7150551450
oct46042372
920688712
109979130
1156a6517
123412b62
1320b5215
14147a9d0
15d21ba5
hex9844fa

9979130 has 16 divisors (see below), whose sum is σ = 20528640. Its totient is φ = 3421392.

The previous prime is 9979127. The next prime is 9979163. The reversal of 9979130 is 319799.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71210 + ... + 71349.

It is an arithmetic number, because the mean of its divisors is an integer number (1283040).

Almost surely, 29979130 is an apocalyptic number.

9979130 is an abundant number, since it is smaller than the sum of its proper divisors (10549510).

9979130 is a wasteful number, since it uses less digits than its factorization.

9979130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142573.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 9979130 is about 3158.9760999412. The cubic root of 9979130 is about 215.2934877779.

The spelling of 9979130 in words is "nine million, nine hundred seventy-nine thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 142559 285118 712795 997913 1425590 1995826 4989565 9979130