Search a number
-
+
85732608 = 2831331277
BaseRepresentation
bin1010001110000…
…10110100000000
312222022200000210
411013002310000
5133421420413
612301314120
72060500203
oct507026400
9188280023
1085732608
11444371a5
1224865940
13149b9770
14b55993a
1577d73c3
hex51c2d00

85732608 has 144 divisors (see below), whose sum is σ = 254567936. Its totient is φ = 25436160.

The previous prime is 85732607. The next prime is 85732637. The reversal of 85732608 is 80623758.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85732601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309366 + ... + 309642.

Almost surely, 285732608 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 85732608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127283968).

85732608 is an abundant number, since it is smaller than the sum of its proper divisors (168835328).

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

85732608 is a wasteful number, since it uses less digits than its factorization.

85732608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 85732608 is about 9259.1904613740. The cubic root of 85732608 is about 440.9425524584.

The spelling of 85732608 in words is "eighty-five million, seven hundred thirty-two thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 31 32 39 48 52 62 64 78 93 96 104 124 128 156 186 192 208 248 256 277 312 372 384 403 416 496 554 624 744 768 806 831 832 992 1108 1209 1248 1488 1612 1662 1664 1984 2216 2418 2496 2976 3224 3324 3328 3601 3968 4432 4836 4992 5952 6448 6648 7202 7936 8587 8864 9672 9984 10803 11904 12896 13296 14404 17174 17728 19344 21606 23808 25761 25792 26592 28808 34348 35456 38688 43212 51522 51584 53184 57616 68696 70912 77376 86424 103044 103168 106368 111631 115232 137392 154752 172848 206088 212736 223262 230464 274784 309504 334893 345696 412176 446524 460928 549568 669786 691392 824352 893048 921856 1099136 1339572 1382784 1648704 1786096 2198272 2679144 2765568 3297408 3572192 5358288 6594816 7144384 10716576 14288768 21433152 28577536 42866304 85732608