Search a number
-
+
75146285 = 571920903
BaseRepresentation
bin1000111101010…
…10010000101101
312020101211022202
410132222100231
5123214140120
611242351245
71601506244
oct436522055
9166354282
1075146285
1139466575
12211bb525
1312751076
149da195b
1568e5875
hex47aa42d

75146285 has 8 divisors (see below), whose sum is σ = 90305280. Its totient is φ = 60030544.

The previous prime is 75146261. The next prime is 75146293. The reversal of 75146285 is 58264157.

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 75146285 - 212 = 75142189 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6857 + ... + 14046.

It is an arithmetic number, because the mean of its divisors is an integer number (11288160).

Almost surely, 275146285 is an apocalyptic number.

It is an amenable number.

75146285 is a deficient number, since it is larger than the sum of its proper divisors (15158995).

75146285 is a wasteful number, since it uses less digits than its factorization.

75146285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21627.

The product of its digits is 67200, while the sum is 38.

The square root of 75146285 is about 8668.6956919712. The cubic root of 75146285 is about 421.9903357999.

The spelling of 75146285 in words is "seventy-five million, one hundred forty-six thousand, two hundred eighty-five".

Divisors: 1 5 719 3595 20903 104515 15029257 75146285