Search a number
-
+
87048849 = 329016283
BaseRepresentation
bin1010011000001…
…00001010010001
320001210112120110
411030010022101
5134241030344
612345431533
72104621506
oct514041221
9201715513
1087048849
11451560a8
122519b5a9
131505a8c4
14b7bd4ad
1579973b9
hex5304291

87048849 has 4 divisors (see below), whose sum is σ = 116065136. Its totient is φ = 58032564.

The previous prime is 87048847. The next prime is 87048869. The reversal of 87048849 is 94884078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 87048849 - 21 = 87048847 is a prime.

It is a super-2 number, since 2×870488492 = 15155004224449602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87048798 and 87048807.

It is not an unprimeable number, because it can be changed into a prime (87048847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14508139 + ... + 14508144.

It is an arithmetic number, because the mean of its divisors is an integer number (29016284).

Almost surely, 287048849 is an apocalyptic number.

It is an amenable number.

87048849 is a deficient number, since it is larger than the sum of its proper divisors (29016287).

87048849 is a wasteful number, since it uses less digits than its factorization.

87048849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29016286.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 87048849 is about 9329.9972668806. The cubic root of 87048849 is about 443.1876785473.

The spelling of 87048849 in words is "eighty-seven million, forty-eight thousand, eight hundred forty-nine".

Divisors: 1 3 29016283 87048849