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23483540 = 2257989167
BaseRepresentation
bin101100110010…
…1010010010100
31122012002100202
41121211102110
522002433130
62155200032
7403415063
oct131452224
948162322
1023483540
111228a593
127a46018
134b32bb2
1431941da
1520dd145
hex1665494

23483540 has 48 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 9115392.

The previous prime is 23483531. The next prime is 23483543. The reversal of 23483540 is 4538432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23483543) by changing a digit.

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, 140537 + ... + 140703.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 223483540 is an apocalyptic number.

23483540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23483540 is an abundant number, since it is smaller than the sum of its proper divisors (27319660).

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

23483540 is a wasteful number, since it uses less digits than its factorization.

23483540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 23483540 is about 4845.9818406593. The cubic root of 23483540 is about 286.3658252503.

The spelling of 23483540 in words is "twenty-three million, four hundred eighty-three thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 79 89 158 167 178 316 334 356 395 445 668 790 835 890 1580 1670 1780 3340 7031 13193 14062 14863 26386 28124 29726 35155 52772 59452 65965 70310 74315 131930 140620 148630 263860 297260 1174177 2348354 4696708 5870885 11741770 23483540