Search a number
-
+
87036156180 = 22335161178067
BaseRepresentation
bin101000100001111000…
…0100101100100010100
322022122200212211202000
41101003300211210110
52411222223444210
6103552302515300
76200560056321
oct1210360454424
9268580784660
1087036156180
1133a03706396
1214a50295b30
138290a89b3c
1442d9427b48
1523e607aac0
hex1443c25914

87036156180 has 48 divisors (see below), whose sum is σ = 270779154240. Its totient is φ = 23209641504.

The previous prime is 87036156161. The next prime is 87036156187. The reversal of 87036156180 is 8165163078.

87036156180 is a `hidden beast` number, since 8 + 7 + 0 + 3 + 6 + 1 + 561 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87036156187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80588494 + ... + 80589573.

It is an arithmetic number, because the mean of its divisors is an integer number (5641232380).

Almost surely, 287036156180 is an apocalyptic number.

It is an amenable number.

87036156180 is an abundant number, since it is smaller than the sum of its proper divisors (183742998060).

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

87036156180 is a wasteful number, since it uses less digits than its factorization.

87036156180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161178085 (or 161178077 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 87036156180 in words is "eighty-seven billion, thirty-six million, one hundred fifty-six thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 161178067 322356134 483534201 644712268 805890335 967068402 1450602603 1611780670 1934136804 2417671005 2901205206 3223561340 4351807809 4835342010 5802410412 7253013015 8703615618 9670684020 14506026030 17407231236 21759039045 29012052060 43518078090 87036156180