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7129241 = 72344281
BaseRepresentation
bin11011001100100010011001
3111102012110222
4123030202121
53311113431
6412445425
7114411650
oct33144231
914365428
107129241
11402a339
122479875
131627cb2
14d38197
1595c57b
hex6cc899

7129241 has 8 divisors (see below), whose sum is σ = 8502144. Its totient is φ = 5844960.

The previous prime is 7129231. The next prime is 7129247. The reversal of 7129241 is 1429217.

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 7129241 - 218 = 6867097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7129241.

It is not an unprimeable number, because it can be changed into a prime (7129247) 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, 21980 + ... + 22301.

It is an arithmetic number, because the mean of its divisors is an integer number (1062768).

Almost surely, 27129241 is an apocalyptic number.

It is an amenable number.

7129241 is a deficient number, since it is larger than the sum of its proper divisors (1372903).

7129241 is a wasteful number, since it uses less digits than its factorization.

7129241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44311.

The product of its digits is 1008, while the sum is 26.

The square root of 7129241 is about 2670.0638569143. The cubic root of 7129241 is about 192.4632279230.

The spelling of 7129241 in words is "seven million, one hundred twenty-nine thousand, two hundred forty-one".

Divisors: 1 7 23 161 44281 309967 1018463 7129241