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2113411868 = 221373856591
BaseRepresentation
bin111110111111000…
…0001101100011100
312110021202110001122
41331332001230130
513312013134433
6545413430112
7103241463431
oct17576015434
95407673048
102113411868
11994a69687
124ab93b338
13278b05689
1416097bb88
15c5816198
hex7df81b1c

2113411868 has 12 divisors (see below), whose sum is σ = 3725467872. Its totient is φ = 1048992480.

The previous prime is 2113411837. The next prime is 2113411897. The reversal of 2113411868 is 8681143112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1927748 + ... + 1928843.

It is an arithmetic number, because the mean of its divisors is an integer number (310455656).

Almost surely, 22113411868 is an apocalyptic number.

It is an amenable number.

2113411868 is a deficient number, since it is larger than the sum of its proper divisors (1612056004).

2113411868 is a wasteful number, since it uses less digits than its factorization.

2113411868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856732 (or 3856730 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 2113411868 is about 45971.8595229734. The cubic root of 2113411868 is about 1283.2995657313.

The spelling of 2113411868 in words is "two billion, one hundred thirteen million, four hundred eleven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 137 274 548 3856591 7713182 15426364 528352967 1056705934 2113411868