Search a number
-
+
87069036 = 22317538053
BaseRepresentation
bin1010011000010…
…01000101101100
320001211120021010
411030021011230
5134242202121
612350105220
72105034405
oct514110554
9201746233
1087069036
114516a28a
12251ab210
1315066b52
14b7c69ac
15799d376
hex530916c

87069036 has 48 divisors (see below), whose sum is σ = 219197664. Its totient is φ = 26797056.

The previous prime is 87068977. The next prime is 87069079. The reversal of 87069036 is 63096078.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 87068985 and 87069003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6786 + ... + 14838.

It is an arithmetic number, because the mean of its divisors is an integer number (4566618).

Almost surely, 287069036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87069036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109598832).

87069036 is an abundant number, since it is smaller than the sum of its proper divisors (132128628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87069036 is a wasteful number, since it uses less digits than its factorization.

87069036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8130 (or 8128 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 87069036 is about 9331.0790372818. The cubic root of 87069036 is about 443.2219349381.

The spelling of 87069036 in words is "eighty-seven million, sixty-nine thousand, thirty-six".

Divisors: 1 2 3 4 6 12 17 34 51 53 68 102 106 159 204 212 318 636 901 1802 2703 3604 5406 8053 10812 16106 24159 32212 48318 96636 136901 273802 410703 426809 547604 821406 853618 1280427 1642812 1707236 2560854 5121708 7255753 14511506 21767259 29023012 43534518 87069036