Search a number
-
+
85739296 = 25173972
BaseRepresentation
bin1010001110001…
…00011100100000
312222100000012111
411013010130200
5133422124141
612301405104
72060525536
oct507043440
9188300174
1085739296
1144441225
1224869794
13149bc816
14b55c156
1577d9381
hex51c4720

85739296 has 36 divisors (see below), whose sum is σ = 179179938. Its totient is φ = 40246272.

The previous prime is 85739293. The next prime is 85739333. The reversal of 85739296 is 69293758.

It can be written as a sum of positive squares in 3 ways, for example, as 85303696 + 435600 = 9236^2 + 660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85739293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 215770 + ... + 216166.

Almost surely, 285739296 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 85739296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89589969).

85739296 is an abundant number, since it is smaller than the sum of its proper divisors (93440642).

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

85739296 is an equidigital number, since it uses as much as digits as its factorization.

85739296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 416 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 85739296 is about 9259.5516090143. The cubic root of 85739296 is about 440.9540181352.

The spelling of 85739296 in words is "eighty-five million, seven hundred thirty-nine thousand, two hundred ninety-six".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 397 544 794 1588 3176 6352 6749 12704 13498 26996 53992 107984 157609 215968 315218 630436 1260872 2521744 2679353 5043488 5358706 10717412 21434824 42869648 85739296