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1404431220012 = 223839139494559
BaseRepresentation
bin10100011011111110100…
…111111011110100101100
311222021002020010002120120
4110123332213323310230
5141002233343020022
62553104203044540
7203316054254562
oct24337647736454
94867066102516
101404431220012
114a16858a0497
121a8231210750
13a258b97b252
144bd90d2da32
15267ec1b3d5c
hex146fe9fbd2c

1404431220012 has 24 divisors (see below), whose sum is σ = 3280912051200. Its totient is φ = 467585758416.

The previous prime is 1404431219969. The next prime is 1404431220037. The reversal of 1404431220012 is 2100221344041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69737212 + ... + 69757347.

It is an arithmetic number, because the mean of its divisors is an integer number (136704668800).

Almost surely, 21404431220012 is an apocalyptic number.

1404431220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1404431220012 is an abundant number, since it is smaller than the sum of its proper divisors (1876480831188).

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

1404431220012 is a wasteful number, since it uses less digits than its factorization.

1404431220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139495405 (or 139495403 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1404431220012 its reverse (2100221344041), we get a palindrome (3504652564053).

The spelling of 1404431220012 in words is "one trillion, four hundred four billion, four hundred thirty-one million, two hundred twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 839 1678 2517 3356 5034 10068 139494559 278989118 418483677 557978236 836967354 1673934708 117035935001 234071870002 351107805003 468143740004 702215610006 1404431220012