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23768320 = 28531599
BaseRepresentation
bin101101010101…
…0110100000000
31122201120000011
41122222310000
522041041240
62205234304
7406012252
oct132526400
948646004
1023768320
1112464544
127b62994
134c026c4
143229cd2
1521476ea
hex16aad00

23768320 has 72 divisors (see below), whose sum is σ = 58867200. Its totient is φ = 9185280.

The previous prime is 23768291. The next prime is 23768347. The reversal of 23768320 is 2386732.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39381 + ... + 39979.

It is an arithmetic number, because the mean of its divisors is an integer number (817600).

Almost surely, 223768320 is an apocalyptic number.

23768320 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 23768320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29433600).

23768320 is an abundant number, since it is smaller than the sum of its proper divisors (35098880).

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

23768320 is an equidigital number, since it uses as much as digits as its factorization.

23768320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 23768320 is about 4875.2764024207. The cubic root of 23768320 is about 287.5187435795.

The spelling of 23768320 in words is "twenty-three million, seven hundred sixty-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 31 32 40 62 64 80 124 128 155 160 248 256 310 320 496 599 620 640 992 1198 1240 1280 1984 2396 2480 2995 3968 4792 4960 5990 7936 9584 9920 11980 18569 19168 19840 23960 37138 38336 39680 47920 74276 76672 92845 95840 148552 153344 185690 191680 297104 371380 383360 594208 742760 766720 1188416 1485520 2376832 2971040 4753664 5942080 11884160 23768320