[go: up one dir, main page]

Search a number
-
+
75180049 = 726334079
BaseRepresentation
bin1000111101100…
…10100000010001
312020110112122021
410132302200101
5123221230144
611243211441
71602006550
oct436624021
9166415567
1075180049
113948997a
1221216b81
1312763549
149dadd97
156900884
hex47b2811

75180049 has 8 divisors (see below), whose sum is σ = 85973760. Its totient is φ = 64399776.

The previous prime is 75180029. The next prime is 75180059. The reversal of 75180049 is 94008157.

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 75180049 - 29 = 75179537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75179996 and 75180023.

It is not an unprimeable number, because it can be changed into a prime (75180029) 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, 16392 + ... + 20470.

It is an arithmetic number, because the mean of its divisors is an integer number (10746720).

Almost surely, 275180049 is an apocalyptic number.

It is an amenable number.

75180049 is a deficient number, since it is larger than the sum of its proper divisors (10793711).

75180049 is a wasteful number, since it uses less digits than its factorization.

75180049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 75180049 is about 8670.6429404053. The cubic root of 75180049 is about 422.0535278716.

The spelling of 75180049 in words is "seventy-five million, one hundred eighty thousand, forty-nine".

Divisors: 1 7 2633 4079 18431 28553 10740007 75180049