Search a number
-
+
47969739636 = 223713311738191
BaseRepresentation
bin101100101011001110…
…000010001101110100
311120211002112020222120
4230223032002031310
51241220223132021
634011553555540
73315510026220
oct545316021564
9146732466876
1047969739636
1119386738425
129368b75bb0
1346a625c030
142470c39780
1513ab5062c6
hexb2b382374

47969739636 has 192 divisors, whose sum is σ = 143042543616. Its totient is φ = 12170995200.

The previous prime is 47969739607. The next prime is 47969739659. The reversal of 47969739636 is 63693796974.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 5852301 + ... + 5860491.

It is an arithmetic number, because the mean of its divisors is an integer number (745013248).

Almost surely, 247969739636 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 47969739636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71521271808).

47969739636 is an abundant number, since it is smaller than the sum of its proper divisors (95072803980).

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

47969739636 is a wasteful number, since it uses less digits than its factorization.

47969739636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8422 (or 8420 counting only the distinct ones).

The product of its digits is 277766496, while the sum is 69.

The spelling of 47969739636 in words is "forty-seven billion, nine hundred sixty-nine million, seven hundred thirty-nine thousand, six hundred thirty-six".