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120001299980 = 2256000064999
BaseRepresentation
bin110111111000010100…
…0101000011000001100
3102110202002121122201212
41233300220220120030
53431230313044410
6131043340153552
711445513135302
oct1576050503014
9373662548655
10120001299980
114698a672891
121b3102388b8
13b415550ca3
145b455a4272
1531c5160b05
hex1bf0a2860c

120001299980 has 12 divisors (see below), whose sum is σ = 252002730000. Its totient is φ = 48000519984.

The previous prime is 120001299959. The next prime is 120001299989. The reversal of 120001299980 is 89992100021.

It is not an unprimeable number, because it can be changed into a prime (120001299989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3000032480 + ... + 3000032519.

It is an arithmetic number, because the mean of its divisors is an integer number (21000227500).

Almost surely, 2120001299980 is an apocalyptic number.

120001299980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001299980 is an abundant number, since it is smaller than the sum of its proper divisors (132001430020).

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

120001299980 is a wasteful number, since it uses less digits than its factorization.

120001299980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000065008 (or 6000065006 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 120001299980 in words is "one hundred twenty billion, one million, two hundred ninety-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 6000064999 12000129998 24000259996 30000324995 60000649990 120001299980