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7244139 = 37344959
BaseRepresentation
bin11011101000100101101011
3111122001002110
4123220211223
53323303024
6415133403
7115400640
oct33504553
914561073
107244139
1140a86a1
122514263
131668396
14d67dc7
15981629
hex6e896b

7244139 has 8 divisors (see below), whose sum is σ = 11038720. Its totient is φ = 4139496.

The previous prime is 7244131. The next prime is 7244141. The reversal of 7244139 is 9314427.

It is a happy number.

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

It is not a de Polignac number, because 7244139 - 23 = 7244131 is a prime.

7244139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7244131) 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 7 ways as a sum of consecutive naturals, for example, 172459 + ... + 172500.

It is an arithmetic number, because the mean of its divisors is an integer number (1379840).

Almost surely, 27244139 is an apocalyptic number.

7244139 is a deficient number, since it is larger than the sum of its proper divisors (3794581).

7244139 is a wasteful number, since it uses less digits than its factorization.

7244139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344969.

The product of its digits is 6048, while the sum is 30.

The square root of 7244139 is about 2691.4938231399. The cubic root of 7244139 is about 193.4916634698.

The spelling of 7244139 in words is "seven million, two hundred forty-four thousand, one hundred thirty-nine".

Divisors: 1 3 7 21 344959 1034877 2414713 7244139