Search a number
-
+
87112685 = 5111583867
BaseRepresentation
bin1010011000100…
…11101111101101
320001220210010202
411030103233231
5134300101220
612351043245
72105305562
oct514235755
9201823122
1087112685
114519a060
1225210525
131508098a
14b7d8869
1579ab275
hex5313bed

87112685 has 8 divisors (see below), whose sum is σ = 114038496. Its totient is φ = 63354640.

The previous prime is 87112681. The next prime is 87112687. The reversal of 87112685 is 58621178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87112685 - 22 = 87112681 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87112681) 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, 791879 + ... + 791988.

It is an arithmetic number, because the mean of its divisors is an integer number (14254812).

Almost surely, 287112685 is an apocalyptic number.

It is an amenable number.

87112685 is a deficient number, since it is larger than the sum of its proper divisors (26925811).

87112685 is a wasteful number, since it uses less digits than its factorization.

87112685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583883.

The product of its digits is 26880, while the sum is 38.

The square root of 87112685 is about 9333.4176484287. The cubic root of 87112685 is about 443.2959871431.

The spelling of 87112685 in words is "eighty-seven million, one hundred twelve thousand, six hundred eighty-five".

Divisors: 1 5 11 55 1583867 7919335 17422537 87112685