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2388993 = 317139337
BaseRepresentation
bin1001000111010000000001
311111101002020
421013100001
51102421433
6123112053
726206665
oct11072001
94441066
102388993
111391982
12972629
13658509
144628a5
15322cb3
hex247401

2388993 has 16 divisors (see below), whose sum is σ = 3407040. Its totient is φ = 1483776.

The previous prime is 2388983. The next prime is 2389001. The reversal of 2388993 is 3998832.

It is not a de Polignac number, because 2388993 - 25 = 2388961 is a prime.

2388993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2388913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6921 + ... + 7257.

It is an arithmetic number, because the mean of its divisors is an integer number (212940).

22388993 is an apocalyptic number.

It is an amenable number.

2388993 is a deficient number, since it is larger than the sum of its proper divisors (1018047).

2388993 is a wasteful number, since it uses less digits than its factorization.

2388993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its digits is 93312, while the sum is 42.

The square root of 2388993 is about 1545.6367619852. The cubic root of 2388993 is about 133.6815971890.

The spelling of 2388993 in words is "two million, three hundred eighty-eight thousand, nine hundred ninety-three".

Divisors: 1 3 17 51 139 337 417 1011 2363 5729 7089 17187 46843 140529 796331 2388993