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47879469388 = 2216373434769
BaseRepresentation
bin101100100101110101…
…101011100101001100
311120120210200001111001
4230211311223211030
51241024121010023
633555011110044
73313332526522
oct544565534514
9146523601431
1047879469388
111933a792013
1293428a2324
13469064409a
142462c5c312
1513a36246ad
hexb25d6b94c

47879469388 has 12 divisors (see below), whose sum is σ = 84303115960. Its totient is φ = 23792864832.

The previous prime is 47879469367. The next prime is 47879469397. The reversal of 47879469388 is 88396497874.

It is a self number, because there is not a number n which added to its sum of digits gives 47879469388.

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, 36716733 + ... + 36718036.

Almost surely, 247879469388 is an apocalyptic number.

It is an amenable number.

47879469388 is a deficient number, since it is larger than the sum of its proper divisors (36423646572).

47879469388 is a wasteful number, since it uses less digits than its factorization.

47879469388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73434936 (or 73434934 counting only the distinct ones).

The product of its digits is 585252864, while the sum is 73.

The spelling of 47879469388 in words is "forty-seven billion, eight hundred seventy-nine million, four hundred sixty-nine thousand, three hundred eighty-eight".

Divisors: 1 2 4 163 326 652 73434769 146869538 293739076 11969867347 23939734694 47879469388