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7242265 = 51448453
BaseRepresentation
bin11011101000001000011001
3111121221112001
4123220020121
53323223030
6415121001
7115362322
oct33501031
914557461
107242265
1140a7248
122513161
131667584
14d67449
15980cca
hex6e8219

7242265 has 4 divisors (see below), whose sum is σ = 8690724. Its totient is φ = 5793808.

The previous prime is 7242259. The next prime is 7242271. The reversal of 7242265 is 5622427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5622427 = 17330731.

It is an interprime number because it is at equal distance from previous prime (7242259) and next prime (7242271).

It can be written as a sum of positive squares in 2 ways, for example, as 2679769 + 4562496 = 1637^2 + 2136^2 .

It is a cyclic number.

It is not a de Polignac number, because 7242265 - 25 = 7242233 is a prime.

It is a Duffinian number.

7242265 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724222 + ... + 724231.

It is an arithmetic number, because the mean of its divisors is an integer number (2172681).

Almost surely, 27242265 is an apocalyptic number.

It is an amenable number.

7242265 is a deficient number, since it is larger than the sum of its proper divisors (1448459).

7242265 is a wasteful number, since it uses less digits than its factorization.

7242265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448458.

The product of its digits is 6720, while the sum is 28.

The square root of 7242265 is about 2691.1456668118. The cubic root of 7242265 is about 193.4749771229.

The spelling of 7242265 in words is "seven million, two hundred forty-two thousand, two hundred sixty-five".

Divisors: 1 5 1448453 7242265