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4101871871 = 28431442797
BaseRepresentation
bin1111010001111101…
…1001100011111111
3101120212101200101102
43310133121203333
531400034344441
61515005203315
7203435223056
oct36437314377
911525350342
104101871871
111815444059
1296586053b
13504a6c226
142acab139d
1519019969b
hexf47d98ff

4101871871 has 4 divisors (see below), whose sum is σ = 4103317512. Its totient is φ = 4100426232.

The previous prime is 4101871859. The next prime is 4101871913. The reversal of 4101871871 is 1781781014.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4101871871 - 210 = 4101870847 is a prime.

It is a super-2 number, since 2×41018718712 = 33650705692202081282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4101871801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718556 + ... + 724241.

It is an arithmetic number, because the mean of its divisors is an integer number (1025829378).

Almost surely, 24101871871 is an apocalyptic number.

4101871871 is a deficient number, since it is larger than the sum of its proper divisors (1445641).

4101871871 is a wasteful number, since it uses less digits than its factorization.

4101871871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445640.

The product of its (nonzero) digits is 12544, while the sum is 38.

The square root of 4101871871 is about 64045.8575631555. The cubic root of 4101871871 is about 1600.7642014759.

The spelling of 4101871871 in words is "four billion, one hundred one million, eight hundred seventy-one thousand, eight hundred seventy-one".

Divisors: 1 2843 1442797 4101871871