Search a number
-
+
75870148 = 2229654053
BaseRepresentation
bin1001000010110…
…10111111000100
312021202121021111
410201122333010
5123410321043
611310054404
71610612524
oct441327704
9167677244
1075870148
1139910402
12214aa404
13129456a3
14a10d684
1569da09d
hex485afc4

75870148 has 12 divisors (see below), whose sum is σ = 137351340. Its totient is φ = 36626912.

The previous prime is 75870139. The next prime is 75870161. The reversal of 75870148 is 84107857.

It can be written as a sum of positive squares in 2 ways, for example, as 19289664 + 56580484 = 4392^2 + 7522^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75870148.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326911 + ... + 327142.

It is an arithmetic number, because the mean of its divisors is an integer number (11445945).

Almost surely, 275870148 is an apocalyptic number.

It is an amenable number.

75870148 is a deficient number, since it is larger than the sum of its proper divisors (61481192).

75870148 is a wasteful number, since it uses less digits than its factorization.

75870148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654086 (or 654084 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 75870148 is about 8710.3471802219. The cubic root of 75870148 is about 423.3409796016.

The spelling of 75870148 in words is "seventy-five million, eight hundred seventy thousand, one hundred forty-eight".

Divisors: 1 2 4 29 58 116 654053 1308106 2616212 18967537 37935074 75870148