Search a number
-
+
61939302796 = 22721731826687
BaseRepresentation
bin111001101011110111…
…101100000110001100
312220212122201121001201
4321223313230012030
52003322430142141
644242102115244
74321625246500
oct715367540614
9186778647051
1061939302796
11242a5137a48
121000741bb24
135ac1472137
142dd826c300
151927b26031
hexe6bdec18c

61939302796 has 36 divisors (see below), whose sum is σ = 126819641088. Its totient is φ = 26391959328.

The previous prime is 61939302767. The next prime is 61939302809. The reversal of 61939302796 is 69720393916.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 879436 + ... + 947251.

It is an arithmetic number, because the mean of its divisors is an integer number (3522767808).

Almost surely, 261939302796 is an apocalyptic number.

It is an amenable number.

61939302796 is an abundant number, since it is smaller than the sum of its proper divisors (64880338292).

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

61939302796 is a wasteful number, since it uses less digits than its factorization.

61939302796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826878 (or 1826869 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 55.

The spelling of 61939302796 in words is "sixty-one billion, nine hundred thirty-nine million, three hundred two thousand, seven hundred ninety-six".

Divisors: 1 2 4 7 14 28 49 98 173 196 346 692 1211 2422 4844 8477 16954 33908 1826687 3653374 7306748 12786809 25573618 51147236 89507663 179015326 316016851 358030652 632033702 1264067404 2212117957 4424235914 8848471828 15484825699 30969651398 61939302796