Search a number
-
+
72724193760 = 25354328112539
BaseRepresentation
bin100001110111010110…
…0110010000111100000
320221201021101211011210
41003232230302013200
52142414343200020
653224203510120
75153113306341
oct1035654620740
9227637354153
1072724193760
1128929a03179
1212117228340
136b1c95231a
14373c7460c8
151d598743e0
hex10eeb321e0

72724193760 has 192 divisors, whose sum is σ = 235261635840. Its totient is φ = 18873200640.

The previous prime is 72724193683. The next prime is 72724193777. The reversal of 72724193760 is 6739142727.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 31 ways as a sum of consecutive naturals, for example, 5793571 + ... + 5806109.

It is an arithmetic number, because the mean of its divisors is an integer number (1225321020).

Almost surely, 272724193760 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 72724193760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117630817920).

72724193760 is an abundant number, since it is smaller than the sum of its proper divisors (162537442080).

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

72724193760 is a wasteful number, since it uses less digits than its factorization.

72724193760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12881 (or 12873 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 48.

The spelling of 72724193760 in words is "seventy-two billion, seven hundred twenty-four million, one hundred ninety-three thousand, seven hundred sixty".