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3191201 = 13245477
BaseRepresentation
bin1100001011000110100001
320000010111122
430023012201
51304104301
6152222025
736060536
oct14130641
96003448
103191201
11188a662
12109a915
138796b0
145d0d8d
1543081b
hex30b1a1

3191201 has 4 divisors (see below), whose sum is σ = 3436692. Its totient is φ = 2945712.

The previous prime is 3191197. The next prime is 3191207. The reversal of 3191201 is 1021913.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 678976 + 2512225 = 824^2 + 1585^2 .

It is a cyclic number.

It is not a de Polignac number, because 3191201 - 22 = 3191197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3191201.

It is not an unprimeable number, because it can be changed into a prime (3191207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122726 + ... + 122751.

It is an arithmetic number, because the mean of its divisors is an integer number (859173).

Almost surely, 23191201 is an apocalyptic number.

It is an amenable number.

3191201 is a deficient number, since it is larger than the sum of its proper divisors (245491).

3191201 is a wasteful number, since it uses less digits than its factorization.

3191201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245490.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 3191201 is about 1786.3932937626. The cubic root of 3191201 is about 147.2260701551.

The spelling of 3191201 in words is "three million, one hundred ninety-one thousand, two hundred one".

Divisors: 1 13 245477 3191201