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868684800 = 21035211311
BaseRepresentation
bin110011110001110…
…001010000000000
32020112120202112010
4303301301100000
53234340403200
6222110532520
730345461514
oct6361612000
92215522463
10868684800
11406393825
12202b07140
1310ac80b99
1483528144
15513e3150
hex33c71400

868684800 has 132 divisors (see below), whose sum is σ = 2871302336. Its totient is φ = 231628800.

The previous prime is 868684793. The next prime is 868684811. The reversal of 868684800 is 8486868.

It is a super-2 number, since 2×8686848002 = 1509226563502080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 868684800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71145 + ... + 82455.

Almost surely, 2868684800 is an apocalyptic number.

868684800 is a gapful number since it is divisible by the number (80) 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 868684800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1435651168).

868684800 is an abundant number, since it is smaller than the sum of its proper divisors (2002617536).

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

868684800 is a wasteful number, since it uses less digits than its factorization.

868684800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11344 (or 11321 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 868684800 is about 29473.4592472618. The cubic root of 868684800 is about 954.1589774133.

The spelling of 868684800 in words is "eight hundred sixty-eight million, six hundred eighty-four thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 128 150 160 192 200 240 256 300 320 384 400 480 512 600 640 768 800 960 1024 1200 1280 1536 1600 1920 2400 2560 3072 3200 3840 4800 5120 6400 7680 9600 11311 12800 15360 19200 22622 25600 33933 38400 45244 56555 67866 76800 90488 113110 135732 169665 180976 226220 271464 282775 339330 361952 452440 542928 565550 678660 723904 848325 904880 1085856 1131100 1357320 1447808 1696650 1809760 2171712 2262200 2714640 2895616 3393300 3619520 4343424 4524400 5429280 5791232 6786600 7239040 8686848 9048800 10858560 11582464 13573200 14478080 17373696 18097600 21717120 27146400 28956160 34747392 36195200 43434240 54292800 57912320 72390400 86868480 108585600 144780800 173736960 217171200 289561600 434342400 868684800