Search a number
-
+
1108216020 = 223518470267
BaseRepresentation
bin100001000001110…
…0000100011010100
32212020022012120210
41002003200203110
54232200403040
6301544525420
736314452332
oct10203404324
92766265523
101108216020
1151961710a
1226b180870
13148799532
14a727ab52
156745a480
hex420e08d4

1108216020 has 24 divisors (see below), whose sum is σ = 3103005024. Its totient is φ = 295524256.

The previous prime is 1108216001. The next prime is 1108216049. The reversal of 1108216020 is 206128011.

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, 9235074 + ... + 9235193.

It is an arithmetic number, because the mean of its divisors is an integer number (129291876).

Almost surely, 21108216020 is an apocalyptic number.

1108216020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1108216020 is an abundant number, since it is smaller than the sum of its proper divisors (1994789004).

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

1108216020 is a wasteful number, since it uses less digits than its factorization.

1108216020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18470279 (or 18470277 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1108216020 is about 33289.8786420137. The cubic root of 1108216020 is about 1034.8438140946.

The spelling of 1108216020 in words is "one billion, one hundred eight million, two hundred sixteen thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 18470267 36940534 55410801 73881068 92351335 110821602 184702670 221643204 277054005 369405340 554108010 1108216020