Search a number
-
+
75422065 = 535174289
BaseRepresentation
bin1000111111011…
…01100101110001
312020220211121211
410133231211301
5123302001230
611252320121
71604035255
oct437554561
9166824554
1075422065
1139634794
1221313041
1312819754
14a034265
15694c42a
hex47ed971

75422065 has 8 divisors (see below), whose sum is σ = 90553320. Its totient is φ = 60306432.

The previous prime is 75422063. The next prime is 75422089. The reversal of 75422065 is 56022457.

It can be written as a sum of positive squares in 4 ways, for example, as 45050944 + 30371121 = 6712^2 + 5511^2 .

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 75422065 - 21 = 75422063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75422063) 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, 15441 + ... + 19729.

It is an arithmetic number, because the mean of its divisors is an integer number (11319165).

Almost surely, 275422065 is an apocalyptic number.

It is an amenable number.

75422065 is a deficient number, since it is larger than the sum of its proper divisors (15131255).

75422065 is a wasteful number, since it uses less digits than its factorization.

75422065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 75422065 is about 8684.5877852665. The cubic root of 75422065 is about 422.5059275804.

The spelling of 75422065 in words is "seventy-five million, four hundred twenty-two thousand, sixty-five".

Divisors: 1 5 3517 4289 17585 21445 15084413 75422065