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2108981058 = 23433811771
BaseRepresentation
bin111110110110100…
…0111111101000010
312102222102100010120
41331231013331002
513304344343213
6545134441110
7103156020552
oct17555077502
95388370116
102108981058
11992512758
124aa363196
13277c139b2
14160147162
15c523d423
hex7db47f42

2108981058 has 16 divisors (see below), whose sum is σ = 4227708576. Its totient is φ = 701369280.

The previous prime is 2108981051. The next prime is 2108981071. The reversal of 2108981058 is 8501898012.

It is a super-2 number, since 2×21089810582 = 8895602206005598728, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2108981051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403288 + ... + 408483.

It is an arithmetic number, because the mean of its divisors is an integer number (264231786).

Almost surely, 22108981058 is an apocalyptic number.

2108981058 is an abundant number, since it is smaller than the sum of its proper divisors (2118727518).

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

2108981058 is a wasteful number, since it uses less digits than its factorization.

2108981058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812209.

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 2108981058 is about 45923.6437796480. The cubic root of 2108981058 is about 1282.4021172479.

The spelling of 2108981058 in words is "two billion, one hundred eight million, nine hundred eighty-one thousand, fifty-eight".

Divisors: 1 2 3 6 433 866 1299 2598 811771 1623542 2435313 4870626 351496843 702993686 1054490529 2108981058