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1212412424 = 23683221891
BaseRepresentation
bin100100001000011…
…1111001000001000
310010111100221011212
41020100333020020
54440334144144
6320150112252
742021223046
oct11020771010
93114327155
101212412424
11572414443
1229a04b688
1316424c102
14b7041396
157168d49e
hex4843f208

1212412424 has 16 divisors (see below), whose sum is σ = 2276611920. Its totient is φ = 605315920.

The previous prime is 1212412351. The next prime is 1212412433. The reversal of 1212412424 is 4242142121.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1212412424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105482 + ... + 116409.

It is an arithmetic number, because the mean of its divisors is an integer number (142288245).

Almost surely, 21212412424 is an apocalyptic number.

It is an amenable number.

1212412424 is a deficient number, since it is larger than the sum of its proper divisors (1064199496).

1212412424 is a wasteful number, since it uses less digits than its factorization.

1212412424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222580 (or 222576 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 1212412424 is about 34819.7131521786. The cubic root of 1212412424 is about 1066.3099441704.

Adding to 1212412424 its reverse (4242142121), we get a palindrome (5454554545).

The spelling of 1212412424 in words is "one billion, two hundred twelve million, four hundred twelve thousand, four hundred twenty-four".

Divisors: 1 2 4 8 683 1366 2732 5464 221891 443782 887564 1775128 151551553 303103106 606206212 1212412424