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23800320 = 293251033
BaseRepresentation
bin101101011001…
…0101000000000
31122210011220100
41122302220000
522043102240
62210042400
7406204455
oct132625000
948704810
1023800320
1112486595
127b79400
134c1413b
14323782c
152151e30
hex16b2a00

23800320 has 120 divisors (see below), whose sum is σ = 82506996. Its totient is φ = 6340608.

The previous prime is 23800307. The next prime is 23800321. The reversal of 23800320 is 2300832.

It can be written as a sum of positive squares in 2 ways, for example, as 22581504 + 1218816 = 4752^2 + 1104^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23800293 and 23800302.

It is not an unprimeable number, because it can be changed into a prime (23800321) 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, 22524 + ... + 23556.

Almost surely, 223800320 is an apocalyptic number.

23800320 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 23800320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41253498).

23800320 is an abundant number, since it is smaller than the sum of its proper divisors (58706676).

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

23800320 is a wasteful number, since it uses less digits than its factorization.

23800320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23800320 is about 4878.5571637524. The cubic root of 23800320 is about 287.6477174106.

The spelling of 23800320 in words is "twenty-three million, eight hundred thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 512 576 640 720 768 960 1033 1152 1280 1440 1536 1920 2066 2304 2560 2880 3099 3840 4132 4608 5165 5760 6198 7680 8264 9297 10330 11520 12396 15495 16528 18594 20660 23040 24792 30990 33056 37188 41320 46485 49584 61980 66112 74376 82640 92970 99168 123960 132224 148752 165280 185940 198336 247920 264448 297504 330560 371880 396672 495840 528896 595008 661120 743760 793344 991680 1190016 1322240 1487520 1586688 1983360 2380032 2644480 2975040 3966720 4760064 5950080 7933440 11900160 23800320