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47990320012 = 2237734441903
BaseRepresentation
bin101100101100011100…
…100010101110001100
311120212112020211221201
4230230130202232030
51241241010220022
634014011035244
73316146663265
oct545434425614
9146775224851
1047990320012
11193973147a8
129373a3bb24
1346aa5b667b
14247387596c
1513ad21e127
hexb2c722b8c

47990320012 has 24 divisors (see below), whose sum is σ = 87434438336. Its totient is φ = 23026819968.

The previous prime is 47990320003. The next prime is 47990320057. The reversal of 47990320012 is 21002309974.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2210148 + ... + 2231755.

Almost surely, 247990320012 is an apocalyptic number.

It is an amenable number.

47990320012 is a deficient number, since it is larger than the sum of its proper divisors (39444118324).

47990320012 is a wasteful number, since it uses less digits than its factorization.

47990320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442017 (or 4442015 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

Adding to 47990320012 its reverse (21002309974), we get a palindrome (68992629986).

The spelling of 47990320012 in words is "forty-seven billion, nine hundred ninety million, three hundred twenty thousand, twelve".

Divisors: 1 2 4 37 73 74 146 148 292 2701 5402 10804 4441903 8883806 17767612 164350411 324258919 328700822 648517838 657401644 1297035676 11997580003 23995160006 47990320012