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80109588 = 223133713879
BaseRepresentation
bin1001100011001…
…10000000010100
312120201222200210
410301212000110
5131002001323
611541005420
71661630436
oct461460024
9176658623
1080109588
1141246579
12229b3870
131379b230
14a8d4656
157076293
hex4c66014

80109588 has 48 divisors (see below), whose sum is σ = 206756480. Its totient is φ = 23981184.

The previous prime is 80109581. The next prime is 80109619. The reversal of 80109588 is 88590108.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80109581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168 + ... + 12711.

Almost surely, 280109588 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 80109588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103378240).

80109588 is an abundant number, since it is smaller than the sum of its proper divisors (126646892).

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

80109588 is a wasteful number, since it uses less digits than its factorization.

80109588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13936 (or 13934 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 80109588 is about 8950.3959688943. The cubic root of 80109588 is about 431.0835983926.

The spelling of 80109588 in words is "eighty million, one hundred nine thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 13 26 37 39 52 74 78 111 148 156 222 444 481 962 1443 1924 2886 5772 13879 27758 41637 55516 83274 166548 180427 360854 513523 541281 721708 1027046 1082562 1540569 2054092 2165124 3081138 6162276 6675799 13351598 20027397 26703196 40054794 80109588