Search a number
-
+
61026384412 = 2272179513729
BaseRepresentation
bin111000110101011101…
…001011101000011100
312211112000220112110201
4320311131023220130
51444440223300122
644011331113244
74260201465040
oct706535135034
9184460815421
1061026384412
1123976891944
12b9b1742824
1359a72a4746
142d4cd0c020
1518c28e6a27
hexe3574ba1c

61026384412 has 12 divisors (see below), whose sum is σ = 122052768880. Its totient is φ = 26154164736.

The previous prime is 61026384409. The next prime is 61026384427. The reversal of 61026384412 is 21448362016.

61026384412 is an admirable number.

It is a congruent number.

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, 1089756837 + ... + 1089756892.

Almost surely, 261026384412 is an apocalyptic number.

It is an amenable number.

61026384412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61026384412 is a wasteful number, since it uses less digits than its factorization.

61026384412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179513740 (or 2179513738 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 61026384412 in words is "sixty-one billion, twenty-six million, three hundred eighty-four thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 2179513729 4359027458 8718054916 15256596103 30513192206 61026384412