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42131074999 = 136135286871
BaseRepresentation
bin100111001111001101…
…010010111110110111
311000202012001100211011
4213033031102332313
51142241023344444
631204343053051
73021022141306
oct471715227667
9130665040734
1042131074999
111695a991252
1281b9741187
133c857307a0
14207962643d
151168b3b734
hex9cf352fb7

42131074999 has 8 divisors (see below), whose sum is σ = 45445951712. Its totient is φ = 38826773280.

The previous prime is 42131074967. The next prime is 42131075023. The reversal of 42131074999 is 99947013124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42131074999 - 25 = 42131074967 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 (42131074919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2635467 + ... + 2651404.

It is an arithmetic number, because the mean of its divisors is an integer number (5680743964).

Almost surely, 242131074999 is an apocalyptic number.

42131074999 is a deficient number, since it is larger than the sum of its proper divisors (3314876713).

42131074999 is a wasteful number, since it uses less digits than its factorization.

42131074999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287497.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 42131074999 in words is "forty-two billion, one hundred thirty-one million, seventy-four thousand, nine hundred ninety-nine".

Divisors: 1 13 613 7969 5286871 68729323 3240851923 42131074999