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89941280 = 25511133931
BaseRepresentation
bin1010101110001…
…10010100100000
320021020111020112
411113012110200
5141011110110
612531430452
72141326322
oct527062440
9207214215
1089941280
1146851240
1226155428
13158312c0
14bd33612
157d69405
hex55c6520

89941280 has 96 divisors (see below), whose sum is σ = 249697728. Its totient is φ = 30182400.

The previous prime is 89941277. The next prime is 89941289. The reversal of 89941280 is 8214998.

It is not an unprimeable number, because it can be changed into a prime (89941289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20915 + ... + 24845.

It is an arithmetic number, because the mean of its divisors is an integer number (2601018).

Almost surely, 289941280 is an apocalyptic number.

89941280 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 89941280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124848864).

89941280 is an abundant number, since it is smaller than the sum of its proper divisors (159756448).

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

89941280 is a wasteful number, since it uses less digits than its factorization.

89941280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970 (or 3962 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 89941280 is about 9483.7376598048. The cubic root of 89941280 is about 448.0429911975.

The spelling of 89941280 in words is "eighty-nine million, nine hundred forty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 11 13 16 20 22 26 32 40 44 52 55 65 80 88 104 110 130 143 160 176 208 220 260 286 352 416 440 520 572 715 880 1040 1144 1430 1760 2080 2288 2860 3931 4576 5720 7862 11440 15724 19655 22880 31448 39310 43241 51103 62896 78620 86482 102206 125792 157240 172964 204412 216205 255515 314480 345928 408824 432410 511030 562133 628960 691856 817648 864820 1022060 1124266 1383712 1635296 1729640 2044120 2248532 2810665 3459280 4088240 4497064 5621330 6918560 8176480 8994128 11242660 17988256 22485320 44970640 89941280