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3392981 = 31109451
BaseRepresentation
bin1100111100010111010101
320101101021222
430330113111
51332033411
6200420125
740561034
oct14742725
96341258
103392981
111a08219
121177645
1391a4a7
1464471b
154704db
hex33c5d5

3392981 has 4 divisors (see below), whose sum is σ = 3502464. Its totient is φ = 3283500.

The previous prime is 3392959. The next prime is 3392993. The reversal of 3392981 is 1892933.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3392981 - 210 = 3391957 is a prime.

It is a super-2 number, since 2×33929812 = 23024640132722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3392941) 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 3 ways as a sum of consecutive naturals, for example, 54695 + ... + 54756.

It is an arithmetic number, because the mean of its divisors is an integer number (875616).

Almost surely, 23392981 is an apocalyptic number.

3392981 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3392981 is a deficient number, since it is larger than the sum of its proper divisors (109483).

3392981 is a wasteful number, since it uses less digits than its factorization.

3392981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109482.

The product of its digits is 11664, while the sum is 35.

The square root of 3392981 is about 1842.0046145436. The cubic root of 3392981 is about 150.2659135067.

The spelling of 3392981 in words is "three million, three hundred ninety-two thousand, nine hundred eighty-one".

Divisors: 1 31 109451 3392981