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1106812180 = 225397139397
BaseRepresentation
bin100000111111000…
…1001110100010100
32212010122212212201
41001332021310110
54231320442210
6301454454244
736266514445
oct10176116424
92763585781
101106812180
11518848411
1226a804384
131483c7566
14a6dd32cc
156727e53a
hex41f89d14

1106812180 has 24 divisors (see below), whose sum is σ = 2330176968. Its totient is φ = 441606528.

The previous prime is 1106812159. The next prime is 1106812193. The reversal of 1106812180 is 812186011.

It can be written as a sum of positive squares in 4 ways, for example, as 70358544 + 1036453636 = 8388^2 + 32194^2 .

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, 61759 + ... + 77638.

It is an arithmetic number, because the mean of its divisors is an integer number (97090707).

Almost surely, 21106812180 is an apocalyptic number.

1106812180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1106812180 is an abundant number, since it is smaller than the sum of its proper divisors (1223364788).

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

1106812180 is a wasteful number, since it uses less digits than its factorization.

1106812180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139803 (or 139801 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 28.

The square root of 1106812180 is about 33268.7868729835. The cubic root of 1106812180 is about 1034.4066643648.

Adding to 1106812180 its reverse (812186011), we get a palindrome (1918998191).

The spelling of 1106812180 in words is "one billion, one hundred six million, eight hundred twelve thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 397 794 1588 1985 3970 7940 139397 278794 557588 696985 1393970 2787940 55340609 110681218 221362436 276703045 553406090 1106812180