Search a number
-
+
312102313012 = 22765916914281
BaseRepresentation
bin1001000101010101011…
…11110101110000110100
31002211120221120020011101
410202222233311300310
520103141143004022
6355213335415444
731356120613630
oct4425257656064
91084527506141
10312102313012
111103a868a186
12505a2524584
132357b236979
141116a593dc0
1581b9dde627
hex48aabf5c34

312102313012 has 24 divisors (see below), whose sum is σ = 625151862720. Its totient is φ = 133555154880.

The previous prime is 312102312971. The next prime is 312102313063. The reversal of 312102313012 is 210313201213.

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, 8438689 + ... + 8475592.

It is an arithmetic number, because the mean of its divisors is an integer number (26047994280).

Almost surely, 2312102313012 is an apocalyptic number.

It is an amenable number.

312102313012 is an abundant number, since it is smaller than the sum of its proper divisors (313049549708).

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

312102313012 is a wasteful number, since it uses less digits than its factorization.

312102313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16914951 (or 16914949 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312102313012 its reverse (210313201213), we get a palindrome (522415514225).

The spelling of 312102313012 in words is "three hundred twelve billion, one hundred two million, three hundred thirteen thousand, twelve".

Divisors: 1 2 4 7 14 28 659 1318 2636 4613 9226 18452 16914281 33828562 67657124 118399967 236799934 473599868 11146511179 22293022358 44586044716 78025578253 156051156506 312102313012