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109180980 = 22335202187
BaseRepresentation
bin1101000000111…
…11100000110100
321121102222011000
412200133200310
5210422242410
614500043300
72464010616
oct640374064
9247388130
10109180980
11566a2317
1230693530
131980963c
1410700db6
1598b9dc0
hex681f834

109180980 has 48 divisors (see below), whose sum is σ = 339675840. Its totient is φ = 29114784.

The previous prime is 109180979. The next prime is 109180993. The reversal of 109180980 is 89081901.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100554 + ... + 101633.

It is an arithmetic number, because the mean of its divisors is an integer number (7076580).

Almost surely, 2109180980 is an apocalyptic number.

109180980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109180980 is an abundant number, since it is smaller than the sum of its proper divisors (230494860).

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

109180980 is a wasteful number, since it uses less digits than its factorization.

109180980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202205 (or 202197 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 109180980 is about 10448.9702841955. The cubic root of 109180980 is about 477.9498497248.

The spelling of 109180980 in words is "one hundred nine million, one hundred eighty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 202187 404374 606561 808748 1010935 1213122 1819683 2021870 2426244 3032805 3639366 4043740 5459049 6065610 7278732 9098415 10918098 12131220 18196830 21836196 27295245 36393660 54590490 109180980