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23081700 = 22352471637
BaseRepresentation
bin101100000001…
…1001011100100
31121102200010210
41120003023210
521402103300
62142415420
7400122405
oct130031344
947380123
1023081700
1112035694
127891570
134a22015
1430cb9ac
15205e050
hex16032e4

23081700 has 72 divisors (see below), whose sum is σ = 68245632. Its totient is φ = 6020480.

The previous prime is 23081693. The next prime is 23081711. The reversal of 23081700 is 718032.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13282 + ... + 14918.

It is an arithmetic number, because the mean of its divisors is an integer number (947856).

Almost surely, 223081700 is an apocalyptic number.

23081700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23081700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34122816).

23081700 is an abundant number, since it is smaller than the sum of its proper divisors (45163932).

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

23081700 is a wasteful number, since it uses less digits than its factorization.

23081700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 23081700 is about 4804.3417863428. The cubic root of 23081700 is about 284.7230303985.

Adding to 23081700 its reverse (718032), we get a palindrome (23799732).

The spelling of 23081700 in words is "twenty-three million, eighty-one thousand, seven hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 47 50 60 75 94 100 141 150 188 235 282 300 470 564 705 940 1175 1410 1637 2350 2820 3274 3525 4700 4911 6548 7050 8185 9822 14100 16370 19644 24555 32740 40925 49110 76939 81850 98220 122775 153878 163700 230817 245550 307756 384695 461634 491100 769390 923268 1154085 1538780 1923475 2308170 3846950 4616340 5770425 7693900 11540850 23081700