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2111542255 = 52340944893
BaseRepresentation
bin111110111011011…
…1001001111101111
312110011020110102201
41331312321033233
513311023323010
6545305402331
7103216545604
oct17566711757
95404213381
102111542255
11993a01a49
124ab1993a7
132785cc6b4
141606126ab
15c559723a
hex7ddb93ef

2111542255 has 16 divisors (see below), whose sum is σ = 2650541760. Its totient is φ = 1611802368.

The previous prime is 2111542247. The next prime is 2111542283. The reversal of 2111542255 is 5522451112.

It is a cyclic number.

It is not a de Polignac number, because 2111542255 - 23 = 2111542247 is a prime.

It is a super-2 number, since 2×21115422552 = 8917221389300970050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24589 + ... + 69481.

It is an arithmetic number, because the mean of its divisors is an integer number (165658860).

Almost surely, 22111542255 is an apocalyptic number.

2111542255 is a deficient number, since it is larger than the sum of its proper divisors (538999505).

2111542255 is a wasteful number, since it uses less digits than its factorization.

2111542255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45330.

The product of its digits is 4000, while the sum is 28.

The square root of 2111542255 is about 45951.5207038897. The cubic root of 2111542255 is about 1282.9210338363.

Adding to 2111542255 its reverse (5522451112), we get a palindrome (7633993367).

The spelling of 2111542255 in words is "two billion, one hundred eleven million, five hundred forty-two thousand, two hundred fifty-five".

Divisors: 1 5 23 115 409 2045 9407 44893 47035 224465 1032539 5162695 18361237 91806185 422308451 2111542255