Search a number
-
+
12131214444445 = 512949918735611
BaseRepresentation
bin1011000010001000010010…
…1110100100011110011101
31120221201210012012112000011
42300202010232210132131
53042224211344210240
641445000351003221
72361310542255145
oct260420456443635
946851705175004
1012131214444445
113957901326028
12143b13b209511
1369cc790753a5
142dd222497925
151608626c46ea
hexb0884ba479d

12131214444445 has 8 divisors (see below), whose sum is σ = 14557570524000. Its totient is φ = 9704896095120.

The previous prime is 12131214444439. The next prime is 12131214444467. The reversal of 12131214444445 is 54444441213121.

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

It is not a de Polignac number, because 12131214444445 - 25 = 12131214444413 is a prime.

It is a super-2 number, since 2×121312144444452 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12131214444398 and 12131214444407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8720311 + ... + 10015300.

It is an arithmetic number, because the mean of its divisors is an integer number (1819696315500).

Almost surely, 212131214444445 is an apocalyptic number.

It is an amenable number.

12131214444445 is a deficient number, since it is larger than the sum of its proper divisors (2426356079555).

12131214444445 is a wasteful number, since it uses less digits than its factorization.

12131214444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18865115.

The product of its digits is 245760, while the sum is 40.

Adding to 12131214444445 its reverse (54444441213121), we get a palindrome (66575655657566).

The spelling of 12131214444445 in words is "twelve trillion, one hundred thirty-one billion, two hundred fourteen million, four hundred forty-four thousand, four hundred forty-five".

Divisors: 1 5 129499 647495 18735611 93678055 2426242888889 12131214444445