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11512450331245 = 529101786101081
BaseRepresentation
bin1010011110000111001110…
…0000110011001001101101
31111202120122110100202020101
42213201303200303021231
53002104444241044440
640252425140351101
72265514152135553
oct247416340631155
944676573322211
1011512450331245
1137394480a0566
12135b2343a5491
13656808abb026
142bb2c411dbd3
1514e6ea36469a
hexa787383326d

11512450331245 has 16 divisors (see below), whose sum is σ = 14432815865520. Its totient is φ = 8804332096000.

The previous prime is 11512450331243. The next prime is 11512450331267. The reversal of 11512450331245 is 54213305421511.

11512450331245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 284817544489 + 11227632786756 = 533683^2 + 3350766^2 .

It is not a de Polignac number, because 11512450331245 - 21 = 11512450331243 is a prime.

It is a super-2 number, since 2×115124503312452 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512450331243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393035896 + ... + 393065185.

It is an arithmetic number, because the mean of its divisors is an integer number (902050991595).

Almost surely, 211512450331245 is an apocalyptic number.

It is an amenable number.

11512450331245 is a deficient number, since it is larger than the sum of its proper divisors (2920365534275).

11512450331245 is a wasteful number, since it uses less digits than its factorization.

11512450331245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786101216.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 11512450331245 its reverse (54213305421511), we get a palindrome (65725755752756).

The spelling of 11512450331245 in words is "eleven trillion, five hundred twelve billion, four hundred fifty million, three hundred thirty-one thousand, two hundred forty-five".

Divisors: 1 5 29 101 145 505 2929 14645 786101081 3930505405 22796931349 79396209181 113984656745 396981045905 2302490066249 11512450331245