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120212020291 = 11229163210173
BaseRepresentation
bin110111111110100110…
…0011101110001000011
3102111021210010100122211
41233331030131301003
53432143234122131
6131120304442551
711453652212236
oct1577514356103
9374253110584
10120212020291
1146a88608100
121b36a919457
13b44a0bc96c
145b6557741d
1531d88d65b1
hex1bfd31dc43

120212020291 has 24 divisors (see below), whose sum is σ = 137529458640. Its totient is φ = 104867421120.

The previous prime is 120212020289. The next prime is 120212020301. The reversal of 120212020291 is 192020212021.

It is not a de Polignac number, because 120212020291 - 21 = 120212020289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120212020231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466881 + ... + 677053.

It is an arithmetic number, because the mean of its divisors is an integer number (5730394110).

Almost surely, 2120212020291 is an apocalyptic number.

120212020291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120212020291 is a deficient number, since it is larger than the sum of its proper divisors (17317438349).

120212020291 is a wasteful number, since it uses less digits than its factorization.

120212020291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210387 (or 210376 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 120212020291 in words is "one hundred twenty billion, two hundred twelve million, twenty thousand, two hundred ninety-one".

Divisors: 1 11 29 121 163 319 1793 3509 4727 19723 51997 210173 571967 2311903 6095017 25430933 34258199 67045187 376840189 737497057 993487771 4145242079 10928365481 120212020291