Search a number
-
+
3987590 = 25398759
BaseRepresentation
bin1111001101100010000110
321111120221112
433031202012
52010100330
6221245022
745615425
oct17154206
97446845
103987590
112283a32
121403772
13a98029
1475b2bc
1553b795
hex3cd886

3987590 has 8 divisors (see below), whose sum is σ = 7177680. Its totient is φ = 1595032.

The previous prime is 3987589. The next prime is 3987593. The reversal of 3987590 is 957893.

3987590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987593) 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, 199370 + ... + 199389.

It is an arithmetic number, because the mean of its divisors is an integer number (897210).

Almost surely, 23987590 is an apocalyptic number.

3987590 is a deficient number, since it is larger than the sum of its proper divisors (3190090).

3987590 is a wasteful number, since it uses less digits than its factorization.

3987590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398766.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 3987590 is about 1996.8950898833. The cubic root of 3987590 is about 158.5757714055.

The spelling of 3987590 in words is "three million, nine hundred eighty-seven thousand, five hundred ninety".

Divisors: 1 2 5 10 398759 797518 1993795 3987590