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23054180 = 22510211129
BaseRepresentation
bin101011111110…
…0011101100100
31121101021101112
41113330131210
521400213210
62142044152
7366646232
oct127743544
947337345
1023054180
1112016a46
127879658
134a12636
1430c1952
152055d05
hex15fc764

23054180 has 24 divisors (see below), whose sum is σ = 48504120. Its totient is φ = 9204480.

The previous prime is 23054167. The next prime is 23054189. The reversal of 23054180 is 8145032.

It can be written as a sum of positive squares in 4 ways, for example, as 320356 + 22733824 = 566^2 + 4768^2 .

It is not an unprimeable number, because it can be changed into a prime (23054189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19856 + ... + 20984.

It is an arithmetic number, because the mean of its divisors is an integer number (2021005).

Almost surely, 223054180 is an apocalyptic number.

23054180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23054180 is an abundant number, since it is smaller than the sum of its proper divisors (25449940).

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

23054180 is a wasteful number, since it uses less digits than its factorization.

23054180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23054180 is about 4801.4768561350. The cubic root of 23054180 is about 284.6098282521.

The spelling of 23054180 in words is "twenty-three million, fifty-four thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 1021 1129 2042 2258 4084 4516 5105 5645 10210 11290 20420 22580 1152709 2305418 4610836 5763545 11527090 23054180