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7442897 = 71196661
BaseRepresentation
bin11100011001000111010001
3112000010201212
4130121013101
53401133042
6423305505
7120156260
oct34310721
915003655
107442897
114223a60
1225ab295
1317079a7
14dba5d7
159c0482
hex7191d1

7442897 has 8 divisors (see below), whose sum is σ = 9279552. Its totient is φ = 5799600.

The previous prime is 7442893. The next prime is 7442917. The reversal of 7442897 is 7982447.

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 7442897 - 22 = 7442893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7442893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48254 + ... + 48407.

It is an arithmetic number, because the mean of its divisors is an integer number (1159944).

Almost surely, 27442897 is an apocalyptic number.

7442897 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

7442897 is a deficient number, since it is larger than the sum of its proper divisors (1836655).

7442897 is a wasteful number, since it uses less digits than its factorization.

7442897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96679.

The product of its digits is 112896, while the sum is 41.

The square root of 7442897 is about 2728.1673335776. The cubic root of 7442897 is about 195.2453366123.

The spelling of 7442897 in words is "seven million, four hundred forty-two thousand, eight hundred ninety-seven".

Divisors: 1 7 11 77 96661 676627 1063271 7442897