Search a number
-
+
47896279808 = 2813172192621
BaseRepresentation
bin101100100110110101…
…110011101100000000
311120121222022010001012
4230212311303230000
51241042421423213
634000411300052
73313625442506
oct544665635400
9146558263035
1047896279808
1119349223a23
12934844a628
134693c7b790
142465196676
1513a4d454a8
hexb26d73b00

47896279808 has 216 divisors, whose sum is σ = 115172818320. Its totient is φ = 19703070720.

The previous prime is 47896279807. The next prime is 47896279831. The reversal of 47896279808 is 80897269874.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is not an unprimeable number, because it can be changed into a prime (47896279807) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 18272738 + ... + 18275358.

Almost surely, 247896279808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47896279808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57586409160).

47896279808 is an abundant number, since it is smaller than the sum of its proper divisors (67276538512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47896279808 is a wasteful number, since it uses less digits than its factorization.

47896279808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703 (or 2672 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 68.

The spelling of 47896279808 in words is "forty-seven billion, eight hundred ninety-six million, two hundred seventy-nine thousand, eight hundred eight".