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2011913142 = 23734593409
BaseRepresentation
bin111011111101011…
…0101101110110110
312012012202202222120
41313322311232312
513110022210032
6531350140410
7100566656661
oct16772655666
95165682876
102011913142
11942744138
12481951706
13260a88965
141512ba6d8
15bb96762c
hex77eb5bb6

2011913142 has 16 divisors (see below), whose sum is σ = 4078948080. Its totient is φ = 661450752.

The previous prime is 2011913119. The next prime is 2011913143. The reversal of 2011913142 is 2413191102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011913143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2296267 + ... + 2297142.

It is an arithmetic number, because the mean of its divisors is an integer number (254934255).

Almost surely, 22011913142 is an apocalyptic number.

2011913142 is an abundant number, since it is smaller than the sum of its proper divisors (2067034938).

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

2011913142 is a wasteful number, since it uses less digits than its factorization.

2011913142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593487.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2011913142 is about 44854.3547718613. The cubic root of 2011913142 is about 1262.4177023373.

The spelling of 2011913142 in words is "two billion, eleven million, nine hundred thirteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 73 146 219 438 4593409 9186818 13780227 27560454 335318857 670637714 1005956571 2011913142