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89074728 = 23341011361
BaseRepresentation
bin1010100111100…
…10110000101000
320012121110120000
411103302300220
5140300342403
612501103000
72131060041
oct523626050
9205543500
1089074728
114630a186
12259b7a60
13155b9a52
14bb898c8
157c477a3
hex54f2c28

89074728 has 80 divisors (see below), whose sum is σ = 252147060. Its totient is φ = 29376000.

The previous prime is 89074723. The next prime is 89074751. The reversal of 89074728 is 82747098.

It can be written as a sum of positive squares in 2 ways, for example, as 87946884 + 1127844 = 9378^2 + 1062^2 .

It is not an unprimeable number, because it can be changed into a prime (89074723) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64768 + ... + 66128.

Almost surely, 289074728 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 89074728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126073530).

89074728 is an abundant number, since it is smaller than the sum of its proper divisors (163072332).

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

89074728 is a wasteful number, since it uses less digits than its factorization.

89074728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 89074728 is about 9437.9408771193. The cubic root of 89074728 is about 446.5994339537.

The spelling of 89074728 in words is "eighty-nine million, seventy-four thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 101 108 162 202 216 303 324 404 606 648 808 909 1212 1361 1818 2424 2722 2727 3636 4083 5444 5454 7272 8166 8181 10888 10908 12249 16332 16362 21816 24498 32664 32724 36747 48996 65448 73494 97992 110241 137461 146988 220482 274922 293976 412383 440964 549844 824766 881928 1099688 1237149 1649532 2474298 3299064 3711447 4948596 7422894 9897192 11134341 14845788 22268682 29691576 44537364 89074728