Search a number
-
+
271087438 = 2135543719
BaseRepresentation
bin10000001010000…
…111011101001110
3200220002200001111
4100022013131032
51023344244223
642522202234
76501130246
oct2012073516
9626080044
10271087438
1112a027006
127695337a
1344216a8b
1428008b26
1518bec30d
hex1028774e

271087438 has 4 divisors (see below), whose sum is σ = 406631160. Its totient is φ = 135543718.

The previous prime is 271087433. The next prime is 271087463. The reversal of 271087438 is 834780172.

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 self number, because there is not a number n which added to its sum of digits gives 271087438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271087433) by changing a digit.

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 as a sum of consecutive naturals, namely, 67771858 + ... + 67771861.

It is an arithmetic number, because the mean of its divisors is an integer number (101657790).

Almost surely, 2271087438 is an apocalyptic number.

271087438 is a deficient number, since it is larger than the sum of its proper divisors (135543722).

271087438 is a wasteful number, since it uses less digits than its factorization.

271087438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135543721.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 271087438 is about 16464.7331590889. The cubic root of 271087438 is about 647.1969536405.

The spelling of 271087438 in words is "two hundred seventy-one million, eighty-seven thousand, four hundred thirty-eight".

Divisors: 1 2 135543719 271087438