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89892880 = 24571114593
BaseRepresentation
bin1010101101110…
…10100000010000
320021011000211221
411112322200100
5141003033010
612530414424
72141035240
oct526724020
9207130757
1089892880
1146818940
1226131414
131581526c
14bd1db20
157d59dda
hex55ba810

89892880 has 80 divisors (see below), whose sum is σ = 260590464. Its totient is φ = 28016640.

The previous prime is 89892863. The next prime is 89892893. The reversal of 89892880 is 8829898.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

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, 1137 + ... + 13456.

Almost surely, 289892880 is an apocalyptic number.

89892880 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 89892880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130295232).

89892880 is an abundant number, since it is smaller than the sum of its proper divisors (170697584).

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

89892880 is a wasteful number, since it uses less digits than its factorization.

89892880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14624 (or 14618 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 89892880 is about 9481.1855798734. The cubic root of 89892880 is about 447.9626084864.

The spelling of 89892880 in words is "eighty-nine million, eight hundred ninety-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 55 56 70 77 80 88 110 112 140 154 176 220 280 308 385 440 560 616 770 880 1232 1540 3080 6160 14593 29186 58372 72965 102151 116744 145930 160523 204302 233488 291860 321046 408604 510755 583720 642092 802615 817208 1021510 1123661 1167440 1284184 1605230 1634416 2043020 2247322 2568368 3210460 4086040 4494644 5618305 6420920 8172080 8989288 11236610 12841840 17978576 22473220 44946440 89892880