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2390487 = 311107677
BaseRepresentation
bin1001000111100111010111
311111110010120
421013213113
51102443422
6123123023
726214231
oct11074727
94443116
102390487
111393010
12973473
136590b8
14463251
1532345c
hex2479d7

2390487 has 16 divisors (see below), whose sum is σ = 3514752. Its totient is φ = 1433120.

The previous prime is 2390477. The next prime is 2390519. The reversal of 2390487 is 7840932.

It is a cyclic number.

It is not a de Polignac number, because 2390487 - 24 = 2390471 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3193 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (219672).

22390487 is an apocalyptic number.

2390487 is a deficient number, since it is larger than the sum of its proper divisors (1124265).

2390487 is a wasteful number, since it uses less digits than its factorization.

2390487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2390487 is about 1546.1199824076. The cubic root of 2390487 is about 133.7094581173.

The spelling of 2390487 in words is "two million, three hundred ninety thousand, four hundred eighty-seven".

Divisors: 1 3 11 33 107 321 677 1177 2031 3531 7447 22341 72439 217317 796829 2390487