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4989907 = 13383839
BaseRepresentation
bin10011000010001111010011
3100101111212101
4103002033103
52234134112
6254541231
760261556
oct23021723
910344771
104989907
1128a8a9a
121807817
131059310
1493c69d
15688757
hex4c23d3

4989907 has 4 divisors (see below), whose sum is σ = 5373760. Its totient is φ = 4606056.

The previous prime is 4989863. The next prime is 4989917. The reversal of 4989907 is 7099894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7099894 = 23549947.

It is not a de Polignac number, because 4989907 - 27 = 4989779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4989917) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 191907 + ... + 191932.

It is an arithmetic number, because the mean of its divisors is an integer number (1343440).

Almost surely, 24989907 is an apocalyptic number.

4989907 is a deficient number, since it is larger than the sum of its proper divisors (383853).

4989907 is a wasteful number, since it uses less digits than its factorization.

4989907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383852.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 4989907 is about 2233.8099740130. The cubic root of 4989907 is about 170.8824585801.

The spelling of 4989907 in words is "four million, nine hundred eighty-nine thousand, nine hundred seven".

Divisors: 1 13 383839 4989907