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2118107142 = 23231721171
BaseRepresentation
bin111111000111111…
…1100000000000110
312110121120222202200
41332033330000012
513314213412032
6550102215330
7103326420324
oct17617740006
95417528680
102118107142
11997686278
124b1424546
13279a8a848
14161440d14
15c5e4247c
hex7e3fc006

2118107142 has 36 divisors (see below), whose sum is σ = 4607686356. Its totient is φ = 703207440.

The previous prime is 2118107119. The next prime is 2118107153. The reversal of 2118107142 is 2417018112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1808217 + ... + 1809387.

Almost surely, 22118107142 is an apocalyptic number.

2118107142 is an abundant number, since it is smaller than the sum of its proper divisors (2489579214).

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

2118107142 is a wasteful number, since it uses less digits than its factorization.

2118107142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2118107142 is about 46022.8980182691. The cubic root of 2118107142 is about 1284.2492128433.

The spelling of 2118107142 in words is "two billion, one hundred eighteen million, one hundred seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 317 634 951 1171 1902 2342 2853 3513 5706 7026 10539 21078 100489 200978 301467 371207 602934 742414 904401 1113621 1808802 2227242 3340863 6681726 117672619 235345238 353017857 706035714 1059053571 2118107142