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2987000039 = 37361712979
BaseRepresentation
bin1011001000001010…
…0000000011100111
321201011120022202002
42302002200003213
522104133000124
61212221435515
7134010036632
oct26202400347
97634508662
102987000039
1112a30a1381
126b440bb9b
13387ab235a
142049c0c19
151273770ae
hexb20a00e7

2987000039 has 8 divisors (see below), whose sum is σ = 3000093360. Its totient is φ = 2973934656.

The previous prime is 2987000017. The next prime is 2987000053. The reversal of 2987000039 is 9300007892.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2987000039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2986999966 and 2987000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987000059) 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, 223652 + ... + 236630.

It is an arithmetic number, because the mean of its divisors is an integer number (375011670).

Almost surely, 22987000039 is an apocalyptic number.

2987000039 is a deficient number, since it is larger than the sum of its proper divisors (13093321).

2987000039 is a wasteful number, since it uses less digits than its factorization.

2987000039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13969.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2987000039 is about 54653.4540445524. The cubic root of 2987000039 is about 1440.1633107927.

The spelling of 2987000039 in words is "two billion, nine hundred eighty-seven million, thirty-nine", and thus it is an aban number.

Divisors: 1 373 617 12979 230141 4841167 8008043 2987000039