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80898384 = 2437240769
BaseRepresentation
bin1001101001001…
…10100101010000
312122020001201110
410310212211100
5131202222014
612005533320
72001424230
oct464464520
9178201643
1080898384
1141735176
1223114240
13139b6288
14aa5bcc0
15717ed59
hex4d26950

80898384 has 40 divisors (see below), whose sum is σ = 238843840. Its totient is φ = 23113728.

The previous prime is 80898373. The next prime is 80898439. The reversal of 80898384 is 48389808.

It is a happy number.

It is a super-2 number, since 2×808983842 = 13089097067622912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 120049 + ... + 120720.

It is an arithmetic number, because the mean of its divisors is an integer number (5971096).

Almost surely, 280898384 is an apocalyptic number.

80898384 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80898384 is an abundant number, since it is smaller than the sum of its proper divisors (157945456).

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

80898384 is a wasteful number, since it uses less digits than its factorization.

80898384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240787 (or 240781 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 80898384 is about 8994.3528950114. The cubic root of 80898384 is about 432.4938624988.

The spelling of 80898384 in words is "eighty million, eight hundred ninety-eight thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 240769 481538 722307 963076 1444614 1685383 1926152 2889228 3370766 3852304 5056149 5778456 6741532 10112298 11556912 13483064 20224596 26966128 40449192 80898384