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89960000 = 265413173
BaseRepresentation
bin1010101110010…
…10111001000000
320021021102220212
411113022321000
5141012210000
612532053252
72141435024
oct527127100
9207242825
1089960000
1146864309
1226164228
1315839990
14bd3a384
157d6ec35
hex55cae40

89960000 has 140 divisors (see below), whose sum is σ = 241619532. Its totient is φ = 33024000.

The previous prime is 89959997. The next prime is 89960009. The reversal of 89960000 is 6998.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 65674816 + 24285184 = 8104^2 + 4928^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89960009) 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, 519914 + ... + 520086.

Almost surely, 289960000 is an apocalyptic number.

89960000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89960000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120809766).

89960000 is an abundant number, since it is smaller than the sum of its proper divisors (151659532).

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

89960000 is a wasteful number, since it uses less digits than its factorization.

89960000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 89960000 is about 9484.7245611035. The cubic root of 89960000 is about 448.0740736361.

Adding to 89960000 its reverse (6998), we get a palindrome (89966998).

The spelling of 89960000 in words is "eighty-nine million, nine hundred sixty thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 125 130 160 173 200 208 250 260 320 325 346 400 416 500 520 625 650 692 800 832 865 1000 1040 1250 1300 1384 1600 1625 1730 2000 2080 2249 2500 2600 2768 3250 3460 4000 4160 4325 4498 5000 5200 5536 6500 6920 8000 8125 8650 8996 10000 10400 11072 11245 13000 13840 16250 17300 17992 20000 20800 21625 22490 26000 27680 32500 34600 35984 40000 43250 44980 52000 55360 56225 65000 69200 71968 86500 89960 104000 108125 112450 130000 138400 143936 173000 179920 216250 224900 260000 276800 281125 346000 359840 432500 449800 520000 562250 692000 719680 865000 899600 1124500 1384000 1405625 1730000 1799200 2249000 2811250 3460000 3598400 4498000 5622500 6920000 8996000 11245000 17992000 22490000 44980000 89960000