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2993481839 = 171381127507
BaseRepresentation
bin1011001001101100…
…1110100001101111
321201121202122002202
42302123032201233
522112312404324
61213012412115
7134116114205
oct26233164157
97647678082
102993481839
1112a6819237
126b661703b
1338924173a
142057cb075
15127c078ae
hexb26ce86f

2993481839 has 8 divisors (see below), whose sum is σ = 3171889008. Its totient is φ = 2815332480.

The previous prime is 2993481793. The next prime is 2993481859. The reversal of 2993481839 is 9381843992.

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 2993481839 - 28 = 2993481583 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 (2993481859) 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, 40277 + ... + 87230.

It is an arithmetic number, because the mean of its divisors is an integer number (396486126).

Almost surely, 22993481839 is an apocalyptic number.

2993481839 is a deficient number, since it is larger than the sum of its proper divisors (178407169).

2993481839 is a wasteful number, since it uses less digits than its factorization.

2993481839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128905.

The product of its digits is 3359232, while the sum is 56.

The square root of 2993481839 is about 54712.7209979544. The cubic root of 2993481839 is about 1441.2042779098.

The spelling of 2993481839 in words is "two billion, nine hundred ninety-three million, four hundred eighty-one thousand, eight hundred thirty-nine".

Divisors: 1 17 1381 23477 127507 2167619 176087167 2993481839