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9930149 = 47920731
BaseRepresentation
bin100101111000…
…010110100101
3200200111121022
4211320112211
510020231044
6552500525
7150255605
oct45702645
920614538
109930149
115672739
1233aa745
132098b38
141466c05
15d123ee
hex9785a5

9930149 has 4 divisors (see below), whose sum is σ = 9951360. Its totient is φ = 9908940.

The previous prime is 9930143. The next prime is 9930169. The reversal of 9930149 is 9410399.

9930149 is digitally balanced in base 2 and base 3, because in such bases 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.

It is a cyclic number.

It is not a de Polignac number, because 9930149 - 28 = 9929893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930143) 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, 9887 + ... + 10844.

It is an arithmetic number, because the mean of its divisors is an integer number (2487840).

Almost surely, 29930149 is an apocalyptic number.

It is an amenable number.

9930149 is a deficient number, since it is larger than the sum of its proper divisors (21211).

9930149 is a wasteful number, since it uses less digits than its factorization.

9930149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21210.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 9930149 is about 3151.2138930895. The cubic root of 9930149 is about 214.9406650759.

The spelling of 9930149 in words is "nine million, nine hundred thirty thousand, one hundred forty-nine".

Divisors: 1 479 20731 9930149