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23240800 = 25521119139
BaseRepresentation
bin101100010101…
…0000001100000
31121201202101101
41120222001200
521422201200
62150044144
7401354302
oct130520140
947652341
1023240800
1112134180
127949654
134a7956b
14312d972
15209126a
hex162a060

23240800 has 144 divisors (see below), whose sum is σ = 65620800. Its totient is φ = 7948800.

The previous prime is 23240797. The next prime is 23240831. The reversal of 23240800 is 804232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 167131 + ... + 167269.

It is an arithmetic number, because the mean of its divisors is an integer number (455700).

Almost surely, 223240800 is an apocalyptic number.

23240800 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 23240800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32810400).

23240800 is an abundant number, since it is smaller than the sum of its proper divisors (42380000).

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

23240800 is a wasteful number, since it uses less digits than its factorization.

23240800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 23240800 is about 4820.8712905449. The cubic root of 23240800 is about 285.3757227810.

The spelling of 23240800 in words is "twenty-three million, two hundred forty thousand, eight hundred".

Divisors: 1 2 4 5 8 10 11 16 19 20 22 25 32 38 40 44 50 55 76 80 88 95 100 110 139 152 160 176 190 200 209 220 275 278 304 352 380 400 418 440 475 550 556 608 695 760 800 836 880 950 1045 1100 1112 1390 1520 1529 1672 1760 1900 2090 2200 2224 2641 2780 3040 3058 3344 3475 3800 4180 4400 4448 5225 5282 5560 6116 6688 6950 7600 7645 8360 8800 10450 10564 11120 12232 13205 13900 15200 15290 16720 20900 21128 22240 24464 26410 27800 29051 30580 33440 38225 41800 42256 48928 52820 55600 58102 61160 66025 76450 83600 84512 105640 111200 116204 122320 132050 145255 152900 167200 211280 232408 244640 264100 290510 305800 422560 464816 528200 581020 611600 726275 929632 1056400 1162040 1223200 1452550 2112800 2324080 2905100 4648160 5810200 11620400 23240800