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7668043 = 38320021
BaseRepresentation
bin11101010000000101001011
3112102120120121
4131100011023
53430334133
6432204111
7122114545
oct35200513
915376517
107668043
114368129
122699637
131786306
141038695
15a1702d
hex75014b

7668043 has 4 divisors (see below), whose sum is σ = 7688448. Its totient is φ = 7647640.

The previous prime is 7668029. The next prime is 7668049. The reversal of 7668043 is 3408667.

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

It is a cyclic number.

It is not a de Polignac number, because 7668043 - 29 = 7667531 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7668049) 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, 9628 + ... + 10393.

It is an arithmetic number, because the mean of its divisors is an integer number (1922112).

Almost surely, 27668043 is an apocalyptic number.

7668043 is a deficient number, since it is larger than the sum of its proper divisors (20405).

7668043 is a wasteful number, since it uses less digits than its factorization.

7668043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20404.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 7668043 is about 2769.1231464130. The cubic root of 7668043 is about 197.1945221458.

The spelling of 7668043 in words is "seven million, six hundred sixty-eight thousand, forty-three".

Divisors: 1 383 20021 7668043