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47978487974 = 2180411329707
BaseRepresentation
bin101100101011101111…
…011010000010100110
311120211200222201110002
4230223233122002212
51241224443103344
634012505301302
73315644263454
oct545357320246
9146750881402
1047978487974
111939067315a
12936ba94832
1346a8002c71
1424720759d4
1513ac18344e
hexb2bbda0a6

47978487974 has 8 divisors (see below), whose sum is σ = 71971775208. Its totient is φ = 23987896240.

The previous prime is 47978487959. The next prime is 47978488003.

47978487974 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628772 + ... + 700935.

It is an arithmetic number, because the mean of its divisors is an integer number (8996471901).

Almost surely, 247978487974 is an apocalyptic number.

47978487974 is a deficient number, since it is larger than the sum of its proper divisors (23993287234).

47978487974 is a wasteful number, since it uses less digits than its factorization.

47978487974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347750.

The product of its digits is 796594176, while the sum is 74.

The spelling of 47978487974 in words is "forty-seven billion, nine hundred seventy-eight million, four hundred eighty-seven thousand, nine hundred seventy-four".

Divisors: 1 2 18041 36082 1329707 2659414 23989243987 47978487974