Search a number
-
+
3291057 = 337111583
BaseRepresentation
bin1100100011011110110001
320012012111000
430203132301
51320303212
6154312213
736654630
oct14433661
96165430
103291057
111948690
121128669
138b2c93
14619517
154501dc
hex3237b1

3291057 has 32 divisors (see below), whose sum is σ = 6082560. Its totient is φ = 1708560.

The previous prime is 3291031. The next prime is 3291073. The reversal of 3291057 is 7501923.

It is not a de Polignac number, because 3291057 - 28 = 3290801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 3291057.

It is not an unprimeable number, because it can be changed into a prime (3291017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1288 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (190080).

Almost surely, 23291057 is an apocalyptic number.

It is an amenable number.

3291057 is a deficient number, since it is larger than the sum of its proper divisors (2791503).

3291057 is a wasteful number, since it uses less digits than its factorization.

3291057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 3291057 is about 1814.1270628046. The cubic root of 3291057 is about 148.7459448557.

The spelling of 3291057 in words is "three million, two hundred ninety-one thousand, fifty-seven".

Divisors: 1 3 7 9 11 21 27 33 63 77 99 189 231 297 693 1583 2079 4749 11081 14247 17413 33243 42741 52239 99729 121891 156717 299187 365673 470151 1097019 3291057