Search a number
-
+
87075382 = 243537691
BaseRepresentation
bin1010011000010…
…10101000110110
320001211212222011
411030022220312
5134242403012
612350154434
72105062042
oct514125066
9201755864
1087075382
1145174029
12251b2a1a
13150699c4
14b7c9022
1579a01a7
hex530aa36

87075382 has 4 divisors (see below), whose sum is σ = 130613076. Its totient is φ = 43537690.

The previous prime is 87075341. The next prime is 87075403. The reversal of 87075382 is 28357078.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21768844 + ... + 21768847.

It is an arithmetic number, because the mean of its divisors is an integer number (32653269).

Almost surely, 287075382 is an apocalyptic number.

87075382 is a deficient number, since it is larger than the sum of its proper divisors (43537694).

87075382 is a wasteful number, since it uses less digits than its factorization.

87075382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43537693.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 87075382 is about 9331.4190775037. The cubic root of 87075382 is about 443.2327027082.

The spelling of 87075382 in words is "eighty-seven million, seventy-five thousand, three hundred eighty-two".

Divisors: 1 2 43537691 87075382