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2849986987 = 47143942139
BaseRepresentation
bin1010100111011111…
…0101100110101011
321100121202100011121
42221313311212223
521314044040422
61150445040111
7130424326651
oct25167654653
97317670147
102849986987
11123281a451
12676556037
133655ac743
141d0716dd1
1511a3108c7
hexa9df59ab

2849986987 has 8 divisors (see below), whose sum is σ = 2912716800. Its totient is φ = 2787344424.

The previous prime is 2849986961. The next prime is 2849986991. The reversal of 2849986987 is 7896899482.

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 2849986987 - 27 = 2849986859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2849906987) 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, 46564 + ... + 88702.

It is an arithmetic number, because the mean of its divisors is an integer number (364089600).

Almost surely, 22849986987 is an apocalyptic number.

2849986987 is a deficient number, since it is larger than the sum of its proper divisors (62729813).

2849986987 is a wasteful number, since it uses less digits than its factorization.

2849986987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43625.

The product of its digits is 125411328, while the sum is 70.

The square root of 2849986987 is about 53385.2693821058. The cubic root of 2849986987 is about 1417.7977811395.

The spelling of 2849986987 in words is "two billion, eight hundred forty-nine million, nine hundred eighty-six thousand, nine hundred eighty-seven".

Divisors: 1 47 1439 42139 67633 1980533 60638021 2849986987