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2112135558 = 231348755603
BaseRepresentation
bin111110111100100…
…1010000110000110
312110012100121021220
41331321022012012
513311201314213
6545330221210
7103224566421
oct17571120606
95405317256
102112135558
11994277785
124ab424806
13278779770
141607289b8
15c5662e23
hex7de4a186

2112135558 has 32 divisors (see below), whose sum is σ = 4558638336. Its totient is φ = 648541728.

The previous prime is 2112135523. The next prime is 2112135559. The reversal of 2112135558 is 8555312112.

It is a super-3 number, since 3×21121355583 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112135559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10185 + ... + 65787.

It is an arithmetic number, because the mean of its divisors is an integer number (142457448).

Almost surely, 22112135558 is an apocalyptic number.

2112135558 is an abundant number, since it is smaller than the sum of its proper divisors (2446502778).

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

2112135558 is a wasteful number, since it uses less digits than its factorization.

2112135558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56108.

The product of its digits is 12000, while the sum is 33.

The square root of 2112135558 is about 45957.9759998197. The cubic root of 2112135558 is about 1283.0411813441.

The spelling of 2112135558 in words is "two billion, one hundred twelve million, one hundred thirty-five thousand, five hundred fifty-eight".

Divisors: 1 2 3 6 13 26 39 78 487 974 1461 2922 6331 12662 18993 37986 55603 111206 166809 333618 722839 1445678 2168517 4337034 27078661 54157322 81235983 162471966 352022593 704045186 1056067779 2112135558