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312410121212 = 22783593226691
BaseRepresentation
bin1001000101111010001…
…10000010001111111100
31002212101101202111122002
410202331012002033330
520104303442334322
6355304053041432
731366546133630
oct4427506021774
91085341674562
10312410121212
11110546407022
1250669626278
13235c9c397b7
14111993dadc0
1581d6e41c92
hex48bd1823fc

312410121212 has 48 divisors (see below), whose sum is σ = 633417345792. Its totient is φ = 132053272320.

The previous prime is 312410121187. The next prime is 312410121253. The reversal of 312410121212 is 212121014213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264787 + ... + 1491477.

It is an arithmetic number, because the mean of its divisors is an integer number (13196194704).

Almost surely, 2312410121212 is an apocalyptic number.

It is an amenable number.

312410121212 is an abundant number, since it is smaller than the sum of its proper divisors (321007224580).

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

312410121212 is a wasteful number, since it uses less digits than its factorization.

312410121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227378 (or 227376 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 312410121212 its reverse (212121014213), we get a palindrome (524531135425).

The spelling of 312410121212 in words is "three hundred twelve billion, four hundred ten million, one hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 83 166 332 581 593 1162 1186 2324 2372 4151 8302 16604 49219 98438 196876 226691 344533 453382 689066 906764 1378132 1586837 3173674 6347348 18815353 37630706 75261412 131707471 134427763 263414942 268855526 526829884 537711052 940994341 1881988682 3763977364 11157504329 22315008658 44630017316 78102530303 156205060606 312410121212