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71254482 = 23131496131
BaseRepresentation
bin1000011111101…
…00000111010010
311222002002202220
410033310013102
5121220120412
611023121510
71523440005
oct417640722
9158062686
1071254482
1137248602
121ba43296
13119ba820
14966b53c
1563c768c
hex43f41d2

71254482 has 32 divisors (see below), whose sum is σ = 154526400. Its totient is φ = 21773760.

The previous prime is 71254481. The next prime is 71254501. The reversal of 71254482 is 28445217.

It is not an unprimeable number, because it can be changed into a prime (71254481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8557 + ... + 14687.

It is an arithmetic number, because the mean of its divisors is an integer number (4828950).

Almost surely, 271254482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71254482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77263200).

71254482 is an abundant number, since it is smaller than the sum of its proper divisors (83271918).

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

71254482 is a wasteful number, since it uses less digits than its factorization.

71254482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298.

The product of its digits is 17920, while the sum is 33.

The square root of 71254482 is about 8441.2369946590. The cubic root of 71254482 is about 414.5759097302.

Adding to 71254482 its reverse (28445217), we get a palindrome (99699699).

The spelling of 71254482 in words is "seventy-one million, two hundred fifty-four thousand, four hundred eighty-two".

Divisors: 1 2 3 6 13 26 39 78 149 298 447 894 1937 3874 5811 6131 11622 12262 18393 36786 79703 159406 239109 478218 913519 1827038 2740557 5481114 11875747 23751494 35627241 71254482