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2115500060 = 225176222059
BaseRepresentation
bin111111000010111…
…1111100000011100
312110102200112112002
41332011333200130
513313032000220
6545530301432
7103265311442
oct17605774034
95412615462
102115500060
11996165563
124b0587878
13279386cab
14160d62b92
15c5ac9c75
hex7e17f81c

2115500060 has 24 divisors (see below), whose sum is σ = 4703877360. Its totient is φ = 796423424.

The previous prime is 2115500059. The next prime is 2115500081. The reversal of 2115500060 is 600055112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3110690 + ... + 3111369.

It is an arithmetic number, because the mean of its divisors is an integer number (195994890).

Almost surely, 22115500060 is an apocalyptic number.

2115500060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115500060 is an abundant number, since it is smaller than the sum of its proper divisors (2588377300).

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

2115500060 is a wasteful number, since it uses less digits than its factorization.

2115500060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222085 (or 6222083 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2115500060 is about 45994.5655485515. The cubic root of 2115500060 is about 1283.7220884795.

Adding to 2115500060 its reverse (600055112), we get a palindrome (2715555172).

The spelling of 2115500060 in words is "two billion, one hundred fifteen million, five hundred thousand, sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 6222059 12444118 24888236 31110295 62220590 105775003 124441180 211550006 423100012 528875015 1057750030 2115500060