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2813222142 = 232983158993
BaseRepresentation
bin1010011110101110…
…0101110011111110
321021001120111021200
42213223211303332
521230141102032
61143053040330
7126466664553
oct24753456376
97231514250
102813222142
111213a99485
126661860a6
1335aaa95b3
141c98a6a2a
15116e9c47c
hexa7ae5cfe

2813222142 has 24 divisors (see below), whose sum is σ = 6101553744. Its totient is φ = 936780864.

The previous prime is 2813222107. The next prime is 2813222143. The reversal of 2813222142 is 2412223182.

2813222142 is a `hidden beast` number, since 281 + 322 + 21 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813222143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61803 + ... + 97190.

It is an arithmetic number, because the mean of its divisors is an integer number (254231406).

Almost surely, 22813222142 is an apocalyptic number.

2813222142 is an abundant number, since it is smaller than the sum of its proper divisors (3288331602).

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

2813222142 is a wasteful number, since it uses less digits than its factorization.

2813222142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159984 (or 159981 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 2813222142 is about 53039.8165720810. The cubic root of 2813222142 is about 1411.6748439414.

The spelling of 2813222142 in words is "two billion, eight hundred thirteen million, two hundred twenty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 983 1966 2949 5898 8847 17694 158993 317986 476979 953958 1430937 2861874 156290119 312580238 468870357 937740714 1406611071 2813222142