Search a number
-
+
75152769 = 3149168127
BaseRepresentation
bin1000111101010…
…11110110000001
312020102011012220
410132223312001
5123214342034
611242441253
71601534166
oct436536601
9166364186
1075152769
113947042a
1221203229
1312753cc3
149da406d
1568e7749
hex47abd81

75152769 has 8 divisors (see below), whose sum is σ = 100876800. Its totient is φ = 49765296.

The previous prime is 75152743. The next prime is 75152783. The reversal of 75152769 is 96725157.

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

It is not a de Polignac number, because 75152769 - 219 = 74628481 is a prime.

It is a super-2 number, since 2×751527692 = 11295877376734722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 75152769.

It is not an unprimeable number, because it can be changed into a prime (75152729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83617 + ... + 84510.

It is an arithmetic number, because the mean of its divisors is an integer number (12609600).

Almost surely, 275152769 is an apocalyptic number.

It is an amenable number.

75152769 is a deficient number, since it is larger than the sum of its proper divisors (25724031).

75152769 is a wasteful number, since it uses less digits than its factorization.

75152769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168279.

The product of its digits is 132300, while the sum is 42.

The square root of 75152769 is about 8669.0696732694. The cubic root of 75152769 is about 422.0024726014.

The spelling of 75152769 in words is "seventy-five million, one hundred fifty-two thousand, seven hundred sixty-nine".

Divisors: 1 3 149 447 168127 504381 25050923 75152769