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42110084879 = 251471674557
BaseRepresentation
bin100111001101111101…
…001110011100001111
311000200201112221210022
4213031331032130033
51142220140204004
631202313132355
73020345546522
oct471575163417
9130621487708
1042110084879
111694a055045
1281b26ba0bb
133c812917b5
142076920bb9
151166d922be
hex9cdf4e70f

42110084879 has 4 divisors (see below), whose sum is σ = 42111784584. Its totient is φ = 42108385176.

The previous prime is 42110084867. The next prime is 42110084941. The reversal of 42110084879 is 97848001124.

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 42110084879 - 232 = 37815117583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42110081879) 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, 812132 + ... + 862425.

It is an arithmetic number, because the mean of its divisors is an integer number (10527946146).

Almost surely, 242110084879 is an apocalyptic number.

42110084879 is a deficient number, since it is larger than the sum of its proper divisors (1699705).

42110084879 is a wasteful number, since it uses less digits than its factorization.

42110084879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699704.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 42110084879 in words is "forty-two billion, one hundred ten million, eighty-four thousand, eight hundred seventy-nine".

Divisors: 1 25147 1674557 42110084879