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120449900029 = 172416781661
BaseRepresentation
bin111000000101101011…
…1111001110111111101
3102111220100201220022111
41300023113321313331
53433140133300104
6131200043214021
711462601154204
oct1601327716775
9374810656274
10120449900029
114709a912728
121b416517311
13b48747a6c4
145b88dba23b
1531ee724404
hex1c0b5f9dfd

120449900029 has 6 divisors (see below), whose sum is σ = 127951970234. Its totient is φ = 113364611520.

The previous prime is 120449900023. The next prime is 120449900143. The reversal of 120449900029 is 920009944021.

It can be written as a sum of positive squares in 3 ways, for example, as 53949352900 + 66500547129 = 232270^2 + 257877^2 .

It is a de Polignac number, because none of the positive numbers 2k-120449900029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120449899964 and 120449900000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120449900023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208390542 + ... + 208391119.

Almost surely, 2120449900029 is an apocalyptic number.

It is an amenable number.

120449900029 is a deficient number, since it is larger than the sum of its proper divisors (7502070205).

120449900029 is an equidigital number, since it uses as much as digits as its factorization.

120449900029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416781695 (or 416781678 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 120449900029 in words is "one hundred twenty billion, four hundred forty-nine million, nine hundred thousand, twenty-nine".

Divisors: 1 17 289 416781661 7085288237 120449900029