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8083687842 = 233149697923
BaseRepresentation
bin1111000011101001…
…10100100110100010
3202212100212220001000
413201310310212202
5113023411002332
63414045252430
7404215133016
oct74164644642
922770786030
108083687842
11347903835a
121697264116
139ba994c59
14569850546
15324a2bb7c
hex1e1d349a2

8083687842 has 16 divisors (see below), whose sum is σ = 17963750880. Its totient is φ = 2694562596.

The previous prime is 8083687841. The next prime is 8083687897. The reversal of 8083687842 is 2487863808.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 149697923 = 8083687842 / (8 + 0 + 8 + 3 + 6 + 8 + 7 + 8 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (8083687841) 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, 74848908 + ... + 74849015.

It is an arithmetic number, because the mean of its divisors is an integer number (1122734430).

Almost surely, 28083687842 is an apocalyptic number.

8083687842 is an abundant number, since it is smaller than the sum of its proper divisors (9880063038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8083687842 is a wasteful number, since it uses less digits than its factorization.

8083687842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149697934 (or 149697928 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The square root of 8083687842 is about 89909.3312287440. The cubic root of 8083687842 is about 2006.9498089383.

The spelling of 8083687842 in words is "eight billion, eighty-three million, six hundred eighty-seven thousand, eight hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 149697923 299395846 449093769 898187538 1347281307 2694562614 4041843921 8083687842