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120227256560 = 2457320586859
BaseRepresentation
bin110111111111000011…
…0100101100011110000
3102111022211210102220002
41233332012211203300
53432211134202220
6131122011205132
711454225550655
oct1577606454360
9374284712802
10120227256560
1146a96174364
121b373a467a8
13b4502c59c8
145b675c1c2c
1531d9de5c75
hex1bfe1a58f0

120227256560 has 40 divisors (see below), whose sum is σ = 283357541040. Its totient is φ = 47432120832.

The previous prime is 120227256533. The next prime is 120227256563. The reversal of 120227256560 is 65652722021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120227256563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10287590 + ... + 10299269.

It is an arithmetic number, because the mean of its divisors is an integer number (7083938526).

Almost surely, 2120227256560 is an apocalyptic number.

120227256560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120227256560 is an abundant number, since it is smaller than the sum of its proper divisors (163130284480).

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

120227256560 is a wasteful number, since it uses less digits than its factorization.

120227256560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20586945 (or 20586939 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 120227256560 its reverse (65652722021), we get a palindrome (185879978581).

The spelling of 120227256560 in words is "one hundred twenty billion, two hundred twenty-seven million, two hundred fifty-six thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 73 80 146 292 365 584 730 1168 1460 2920 5840 20586859 41173718 82347436 102934295 164694872 205868590 329389744 411737180 823474360 1502840707 1646948720 3005681414 6011362828 7514203535 12022725656 15028407070 24045451312 30056814140 60113628280 120227256560