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133120333220 = 22574931192833
BaseRepresentation
bin111101111111010010…
…1110001010110100100
3110201121101101121002212
41323332211301112210
54140112301130340
6141053222422552
712421563106520
oct1737645612644
9421541347085
10133120333220
1151501a59716
1221971891a58
13c72649b854
14662ba76d80
1536e1c76a65
hex1efe9715a4

133120333220 has 48 divisors (see below), whose sum is σ = 319555248768. Its totient is φ = 45631764480.

The previous prime is 133120333189. The next prime is 133120333223. The reversal of 133120333220 is 22333021331.

It is not an unprimeable number, because it can be changed into a prime (133120333223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593924 + ... + 786756.

It is an arithmetic number, because the mean of its divisors is an integer number (6657401016).

Almost surely, 2133120333220 is an apocalyptic number.

133120333220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133120333220 is an abundant number, since it is smaller than the sum of its proper divisors (186434915548).

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

133120333220 is a wasteful number, since it uses less digits than its factorization.

133120333220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197780 (or 197778 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 133120333220 its reverse (22333021331), we get a palindrome (155453354551).

The spelling of 133120333220 in words is "one hundred thirty-three billion, one hundred twenty million, three hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 4931 9862 19724 24655 34517 49310 69034 98620 138068 172585 192833 345170 385666 690340 771332 964165 1349831 1928330 2699662 3856660 5399324 6749155 13498310 26996620 950859523 1901719046 3803438092 4754297615 6656016661 9508595230 13312033322 19017190460 26624066644 33280083305 66560166610 133120333220