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1212310102 = 21531395921
BaseRepresentation
bin100100001000010…
…0110001001010110
310010111011201211011
41020100212021112
54440322410402
6320144002434
742020315533
oct11020461126
93114151734
101212310102
11572354583
1229a00041a
13164214673
14b7015d8a
157166ced7
hex48426256

1212310102 has 8 divisors (see below), whose sum is σ = 1819657512. Its totient is φ = 605757600.

The previous prime is 1212310097. The next prime is 1212310109. The reversal of 1212310102 is 2010132121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12123101022 = 2939391566822500808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212310109) by changing a digit.

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, 194899 + ... + 201022.

It is an arithmetic number, because the mean of its divisors is an integer number (227457189).

Almost surely, 21212310102 is an apocalyptic number.

1212310102 is a deficient number, since it is larger than the sum of its proper divisors (607347410).

1212310102 is a wasteful number, since it uses less digits than its factorization.

1212310102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397454.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1212310102 is about 34818.2438098190. The cubic root of 1212310102 is about 1066.2799461176.

Adding to 1212310102 its reverse (2010132121), we get a palindrome (3222442223).

The spelling of 1212310102 in words is "one billion, two hundred twelve million, three hundred ten thousand, one hundred two".

Divisors: 1 2 1531 3062 395921 791842 606155051 1212310102