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1404421212 = 223117035101
BaseRepresentation
bin101001110110101…
…1100010001011100
310121212122222201110
41103231130101130
510334012434322
6351205342020
746542245325
oct12355342134
93555588643
101404421212
11660839497
12332407910
13194c68c8c
14d474344c
1583469c0c
hex53b5c45c

1404421212 has 12 divisors (see below), whose sum is σ = 3276982856. Its totient is φ = 468140400.

The previous prime is 1404421201. The next prime is 1404421217. The reversal of 1404421212 is 2121244041.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404421217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58517539 + ... + 58517562.

Almost surely, 21404421212 is an apocalyptic number.

1404421212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1404421212 is an abundant number, since it is smaller than the sum of its proper divisors (1872561644).

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

1404421212 is a wasteful number, since it uses less digits than its factorization.

1404421212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117035108 (or 117035106 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1404421212 is about 37475.6082272189. The cubic root of 1404421212 is about 1119.8653143738.

Adding to 1404421212 its reverse (2121244041), we get a palindrome (3525665253).

The spelling of 1404421212 in words is "one billion, four hundred four million, four hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 117035101 234070202 351105303 468140404 702210606 1404421212