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23012800 = 265219757
BaseRepresentation
bin101011111001…
…0010111000000
31121022011121221
41113302113000
521342402200
62141124424
7366414466
oct127622700
947264557
1023012800
1111a98948
127859714
1349c9855
1430b0836
15204891a
hex15f25c0

23012800 has 84 divisors (see below), whose sum is σ = 59684920. Its totient is φ = 8709120.

The previous prime is 23012797. The next prime is 23012809. The reversal of 23012800 is 821032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30022 + ... + 30778.

Almost surely, 223012800 is an apocalyptic number.

23012800 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 23012800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29842460).

23012800 is an abundant number, since it is smaller than the sum of its proper divisors (36672120).

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

23012800 is a wasteful number, since it uses less digits than its factorization.

23012800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 23012800 is about 4797.1658299458. The cubic root of 23012800 is about 284.4394439948.

Adding to 23012800 its reverse (821032), we get a palindrome (23833832).

The spelling of 23012800 in words is "twenty-three million, twelve thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 32 38 40 50 64 76 80 95 100 152 160 190 200 304 320 380 400 475 608 757 760 800 950 1216 1514 1520 1600 1900 3028 3040 3785 3800 6056 6080 7570 7600 12112 14383 15140 15200 18925 24224 28766 30280 30400 37850 48448 57532 60560 71915 75700 115064 121120 143830 151400 230128 242240 287660 302800 359575 460256 575320 605600 719150 920512 1150640 1211200 1438300 2301280 2876600 4602560 5753200 11506400 23012800