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120001307200 = 265275000817
BaseRepresentation
bin110111111000010100…
…0101010001001000000
3102110202002122000122021
41233300220222021000
53431230313312300
6131043340251224
711445513165325
oct1576050521100
9373662560567
10120001307200
114698a678255
121b310240b14
13b415554368
145b455a6b4c
1531c5162d1a
hex1bf0a2a240

120001307200 has 42 divisors (see below), whose sum is σ = 295278220466. Its totient is φ = 48000522240.

The previous prime is 120001307189. The next prime is 120001307227. The reversal of 120001307200 is 2703100021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8263537216 + 111737769984 = 90904^2 + 334272^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37498809 + ... + 37502008.

Almost surely, 2120001307200 is an apocalyptic number.

120001307200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001307200 is an abundant number, since it is smaller than the sum of its proper divisors (175276913266).

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

120001307200 is an equidigital number, since it uses as much as digits as its factorization.

120001307200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75000839 (or 75000824 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

Adding to 120001307200 its reverse (2703100021), we get a palindrome (122704407221).

The spelling of 120001307200 in words is "one hundred twenty billion, one million, three hundred seven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 75000817 150001634 300003268 375004085 600006536 750008170 1200013072 1500016340 1875020425 2400026144 3000032680 3750040850 4800052288 6000065360 7500081700 12000130720 15000163400 24000261440 30000326800 60000653600 120001307200