Search a number
-
+
71394832 = 24171991319
BaseRepresentation
bin1000100000101…
…10011000010000
311222100020022001
410100112120100
5121234113312
611030123344
71524563125
oct420263020
9158306261
1071394832
1137333aa3
121bab0554
1311a39682
1496a674c
156404057
hex4416610

71394832 has 40 divisors (see below), whose sum is σ = 147312000. Its totient is φ = 33403392.

The previous prime is 71394809. The next prime is 71394847. The reversal of 71394832 is 23849317.

It is a junction number, because it is equal to n+sod(n) for n = 71394791 and 71394800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53469 + ... + 54787.

It is an arithmetic number, because the mean of its divisors is an integer number (3682800).

Almost surely, 271394832 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 71394832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73656000).

71394832 is an abundant number, since it is smaller than the sum of its proper divisors (75917168).

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

71394832 is a wasteful number, since it uses less digits than its factorization.

71394832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1537 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 71394832 is about 8449.5462600071. The cubic root of 71394832 is about 414.8479280240.

The spelling of 71394832 in words is "seventy-one million, three hundred ninety-four thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 16 17 34 68 136 199 272 398 796 1319 1592 2638 3184 3383 5276 6766 10552 13532 21104 22423 27064 44846 54128 89692 179384 262481 358768 524962 1049924 2099848 4199696 4462177 8924354 17848708 35697416 71394832