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23092920 = 23325232789
BaseRepresentation
bin101100000010…
…1111010111000
31121110020112100
41120011322320
521402433140
62142543400
7400200204
oct130057270
947406470
1023092920
1112043064
127897b60
134a27166
1430d1b04
152062530
hex1605eb8

23092920 has 96 divisors (see below), whose sum is σ = 78343200. Its totient is φ = 5888256.

The previous prime is 23092889. The next prime is 23092967. The reversal of 23092920 is 2929032.

It is a congruent number.

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, 6886 + ... + 9674.

It is an arithmetic number, because the mean of its divisors is an integer number (816075).

Almost surely, 223092920 is an apocalyptic number.

23092920 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 23092920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39171600).

23092920 is an abundant number, since it is smaller than the sum of its proper divisors (55250280).

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

23092920 is a wasteful number, since it uses less digits than its factorization.

23092920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829 (or 2822 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 23092920 is about 4805.5093382492. The cubic root of 23092920 is about 284.7691574878.

The spelling of 23092920 in words is "twenty-three million, ninety-two thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 30 36 40 45 46 60 69 72 90 92 115 120 138 180 184 207 230 276 345 360 414 460 552 690 828 920 1035 1380 1656 2070 2760 2789 4140 5578 8280 8367 11156 13945 16734 22312 25101 27890 33468 41835 50202 55780 64147 66936 83670 100404 111560 125505 128294 167340 192441 200808 251010 256588 320735 334680 384882 502020 513176 577323 641470 769764 962205 1004040 1154646 1282940 1539528 1924410 2309292 2565880 2886615 3848820 4618584 5773230 7697640 11546460 23092920