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8142874885 = 55992718823
BaseRepresentation
bin1111001010101101…
…00110100100000101
3210000111020220101201
413211112212210011
5113134033444020
63424002022501
7405534203005
oct74526464405
923014226351
108142874885
1134a9493472
1216b3047a31
139ca018b82
1457365a005
15329d1da0a
hex1e55a6905

8142874885 has 8 divisors (see below), whose sum is σ = 9787766400. Its totient is φ = 6503422224.

The previous prime is 8142874877. The next prime is 8142874889. The reversal of 8142874885 is 5884782418.

It is a happy number.

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 8142874885 - 23 = 8142874877 is a prime.

It is a super-2 number, since 2×81428748852 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8142874889) 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, 1356417 + ... + 1362406.

It is an arithmetic number, because the mean of its divisors is an integer number (1223470800).

Almost surely, 28142874885 is an apocalyptic number.

It is an amenable number.

8142874885 is a deficient number, since it is larger than the sum of its proper divisors (1644891515).

8142874885 is a wasteful number, since it uses less digits than its factorization.

8142874885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719427.

The product of its digits is 4587520, while the sum is 55.

The square root of 8142874885 is about 90237.8794354123. The cubic root of 8142874885 is about 2011.8360561261.

The spelling of 8142874885 in words is "eight billion, one hundred forty-two million, eight hundred seventy-four thousand, eight hundred eighty-five".

Divisors: 1 5 599 2995 2718823 13594115 1628574977 8142874885