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3325981 = 29114689
BaseRepresentation
bin1100101100000000011101
320020222101111
430230000131
51322412411
6155142021
740161511
oct14540035
96228344
103325981
11197194a
121144911
138c5b49
14628141
1545a721
hex32c01d

3325981 has 4 divisors (see below), whose sum is σ = 3440700. Its totient is φ = 3211264.

The previous prime is 3325963. The next prime is 3325991. The reversal of 3325981 is 1895233.

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 749956 + 2576025 = 866^2 + 1605^2 .

It is a 8-Lehmer number, since φ(3325981) divides (3325981-1)8.

It is a cyclic number.

It is not a de Polignac number, because 3325981 - 211 = 3323933 is a prime.

It is a super-2 number, since 2×33259812 = 22124299224722, which contains 22 as substring.

It is a Duffinian number.

3325981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3325901) 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, 57316 + ... + 57373.

It is an arithmetic number, because the mean of its divisors is an integer number (860175).

Almost surely, 23325981 is an apocalyptic number.

It is an amenable number.

3325981 is a deficient number, since it is larger than the sum of its proper divisors (114719).

3325981 is a wasteful number, since it uses less digits than its factorization.

3325981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114718.

The product of its digits is 6480, while the sum is 31.

The square root of 3325981 is about 1823.7272274109. The cubic root of 3325981 is about 149.2702480977.

The spelling of 3325981 in words is "three million, three hundred twenty-five thousand, nine hundred eighty-one".

Divisors: 1 29 114689 3325981