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23083720 = 23511232281
BaseRepresentation
bin101100000001…
…1101011001000
31121102202220121
41120003223020
521402134340
62142433024
7400131322
oct130035310
947382817
1023083720
1112037160
127892774
134a22c0a
1430cc612
15205e94a
hex1603ac8

23083720 has 64 divisors (see below), whose sum is σ = 59149440. Its totient is φ = 8025600.

The previous prime is 23083699. The next prime is 23083757. The reversal of 23083720 is 2738032.

It is a happy 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, 8980 + ... + 11260.

It is an arithmetic number, because the mean of its divisors is an integer number (924210).

Almost surely, 223083720 is an apocalyptic number.

23083720 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 23083720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29574720).

23083720 is an abundant number, since it is smaller than the sum of its proper divisors (36065720).

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

23083720 is a wasteful number, since it uses less digits than its factorization.

23083720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326 (or 2322 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 23083720 is about 4804.5520082522. The cubic root of 23083720 is about 284.7313360222.

The spelling of 23083720 in words is "twenty-three million, eighty-three thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 23 40 44 46 55 88 92 110 115 184 220 230 253 440 460 506 920 1012 1265 2024 2281 2530 4562 5060 9124 10120 11405 18248 22810 25091 45620 50182 52463 91240 100364 104926 125455 200728 209852 250910 262315 419704 501820 524630 577093 1003640 1049260 1154186 2098520 2308372 2885465 4616744 5770930 11541860 23083720