Search a number
-
+
87272099 = 3117316273
BaseRepresentation
bin1010011001110…
…10101010100011
320002012212210222
411030322222203
5134320201344
612354313255
72106541415
oct514725243
9202185728
1087272099
1145298902
122528882b
13151083c5
14b83a9b5
1579dd5ee
hex533aaa3

87272099 has 8 divisors (see below), whose sum is σ = 90613632. Its totient is φ = 83963520.

The previous prime is 87272083. The next prime is 87272167. The reversal of 87272099 is 99027278.

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 87272099 - 24 = 87272083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87272299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2774 + ... + 13499.

It is an arithmetic number, because the mean of its divisors is an integer number (11326704).

Almost surely, 287272099 is an apocalyptic number.

87272099 is a deficient number, since it is larger than the sum of its proper divisors (3341533).

87272099 is a wasteful number, since it uses less digits than its factorization.

87272099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16477.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 87272099 is about 9341.9537035890. The cubic root of 87272099 is about 443.5662291621.

The spelling of 87272099 in words is "eighty-seven million, two hundred seventy-two thousand, ninety-nine".

Divisors: 1 31 173 5363 16273 504463 2815229 87272099