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105872000 = 275313509
BaseRepresentation
bin1100100111101…
…11101010000000
321101012212002012
412103313222000
5204100401000
614301112052
72423616503
oct623675200
9241185065
10105872000
1154842223
122b558628
1318c1b470
14100bd13a
159464735
hex64f7a80

105872000 has 128 divisors (see below), whose sum is σ = 284029200. Its totient is φ = 39014400.

The previous prime is 105871979. The next prime is 105872003. The reversal of 105872000 is 278501.

It can be written as a sum of positive squares in 8 ways, for example, as 2483776 + 103388224 = 1576^2 + 10168^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1058720002 = 22417760768000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105872003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207746 + ... + 208254.

Almost surely, 2105872000 is an apocalyptic number.

105872000 is a gapful number since it is divisible by the number (10) 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 105872000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142014600).

105872000 is an abundant number, since it is smaller than the sum of its proper divisors (178157200).

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

105872000 is an equidigital number, since it uses as much as digits as its factorization.

105872000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 105872000 is about 10289.4120337364. The cubic root of 105872000 is about 473.0717768507.

The spelling of 105872000 in words is "one hundred five million, eight hundred seventy-two thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 125 128 130 160 200 208 250 260 320 325 400 416 500 509 520 640 650 800 832 1000 1018 1040 1300 1600 1625 1664 2000 2036 2080 2545 2600 3200 3250 4000 4072 4160 5090 5200 6500 6617 8000 8144 8320 10180 10400 12725 13000 13234 16000 16288 20360 20800 25450 26000 26468 32576 33085 40720 41600 50900 52000 52936 63625 65152 66170 81440 101800 104000 105872 127250 132340 162880 165425 203600 208000 211744 254500 264680 325760 330850 407200 423488 509000 529360 661700 814400 827125 846976 1018000 1058720 1323400 1628800 1654250 2036000 2117440 2646800 3308500 4072000 4234880 5293600 6617000 8144000 10587200 13234000 21174400 26468000 52936000 105872000