Search a number
-
+
75245065 = 572149859
BaseRepresentation
bin1000111110000…
…10011000001001
312020120211211021
410133002120021
5123230320230
611244432441
71602400240
oct437023011
9166524737
1075245065
1139523805
1221248721
131278700c
149dc9957
156914c7a
hex47c2609

75245065 has 8 divisors (see below), whose sum is σ = 103193280. Its totient is φ = 51596592.

The previous prime is 75245057. The next prime is 75245069. The reversal of 75245065 is 56054257.

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 75245065 - 23 = 75245057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75245065.

It is not an unprimeable number, because it can be changed into a prime (75245069) 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, 1074895 + ... + 1074964.

It is an arithmetic number, because the mean of its divisors is an integer number (12899160).

Almost surely, 275245065 is an apocalyptic number.

It is an amenable number.

75245065 is a deficient number, since it is larger than the sum of its proper divisors (27948215).

75245065 is a wasteful number, since it uses less digits than its factorization.

75245065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149871.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 75245065 is about 8674.3913331138. The cubic root of 75245065 is about 422.1751573296.

The spelling of 75245065 in words is "seventy-five million, two hundred forty-five thousand, sixty-five".

Divisors: 1 5 7 35 2149859 10749295 15049013 75245065