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7442669 = 13797247
BaseRepresentation
bin11100011001000011101101
3112000010102102
4130121003231
53401131134
6423304445
7120155513
oct34310355
915003372
107442669
114223873
1225ab125
131707860
14dba4b3
159c037e
hex7190ed

7442669 has 8 divisors (see below), whose sum is σ = 8117760. Its totient is φ = 6782256.

The previous prime is 7442663. The next prime is 7442681. The reversal of 7442669 is 9662447.

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

It is not a de Polignac number, because 7442669 - 24 = 7442653 is a prime.

It is a super-2 number, since 2×74426692 = 110786643687122, 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 (7442663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2597 + ... + 4650.

It is an arithmetic number, because the mean of its divisors is an integer number (1014720).

Almost surely, 27442669 is an apocalyptic number.

7442669 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

7442669 is a deficient number, since it is larger than the sum of its proper divisors (675091).

7442669 is a wasteful number, since it uses less digits than its factorization.

7442669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7339.

The product of its digits is 72576, while the sum is 38.

The square root of 7442669 is about 2728.1255469644. The cubic root of 7442669 is about 195.2433429267.

The spelling of 7442669 in words is "seven million, four hundred forty-two thousand, six hundred sixty-nine".

Divisors: 1 13 79 1027 7247 94211 572513 7442669