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12102144434 = 259310204169
BaseRepresentation
bin10110100010101100…
…00001000110110010
31011020102022122011122
423101112001012302
5144241122110214
65320514542242
7605621346632
oct132126010662
934212278148
1012102144434
115150388266
122418b97982
1311ab379413
1482b40a6c2
154ac6ea88e
hex2d15811b2

12102144434 has 8 divisors (see below), whose sum is σ = 18183830940. Its totient is φ = 6040867456.

The previous prime is 12102144359. The next prime is 12102144463. The reversal of 12102144434 is 43444120121.

It can be written as a sum of positive squares in 2 ways, for example, as 11266761025 + 835383409 = 106145^2 + 28903^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5100899 + ... + 5103270.

Almost surely, 212102144434 is an apocalyptic number.

12102144434 is a deficient number, since it is larger than the sum of its proper divisors (6081686506).

12102144434 is a wasteful number, since it uses less digits than its factorization.

12102144434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204764.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 12102144434 its reverse (43444120121), we get a palindrome (55546264555).

The spelling of 12102144434 in words is "twelve billion, one hundred two million, one hundred forty-four thousand, four hundred thirty-four".

Divisors: 1 2 593 1186 10204169 20408338 6051072217 12102144434