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3089981 = 23373631
BaseRepresentation
bin1011110010011000111101
312210222122202
423302120331
51242334411
6150121245
735156456
oct13623075
95728582
103089981
111820604
121050225
138425bb
145a612d
1541083b
hex2f263d

3089981 has 8 divisors (see below), whose sum is σ = 3312384. Its totient is φ = 2874960.

The previous prime is 3089959. The next prime is 3089993. The reversal of 3089981 is 1899803.

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

It is a cyclic number.

It is not a de Polignac number, because 3089981 - 210 = 3088957 is a prime.

It is a super-2 number, since 2×30899812 = 19095965160722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3089941) 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 7 ways as a sum of consecutive naturals, for example, 965 + ... + 2666.

It is an arithmetic number, because the mean of its divisors is an integer number (414048).

Almost surely, 23089981 is an apocalyptic number.

It is an amenable number.

3089981 is a deficient number, since it is larger than the sum of its proper divisors (222403).

3089981 is a wasteful number, since it uses less digits than its factorization.

3089981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 3089981 is about 1757.8341787552. The cubic root of 3089981 is about 145.6527212418.

The spelling of 3089981 in words is "three million, eighty-nine thousand, nine hundred eighty-one".

Divisors: 1 23 37 851 3631 83513 134347 3089981