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418328245897 = 3433121855009
BaseRepresentation
bin1100001011001100100…
…11100111011010001001
31110222210000101201201221
412011212103213122021
523323214012332042
6520102150042041
742136364264152
oct6054623473211
91428700351657
10418328245897
11151459430861
12690a9349321
13305a9879163
1416366436929
15ad359ded67
hex61664e7689

418328245897 has 4 divisors (see below), whose sum is σ = 418450104340. Its totient is φ = 418206387456.

The previous prime is 418328245873. The next prime is 418328245903. The reversal of 418328245897 is 798542823814.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798542823814 = 2399271411907.

It can be written as a sum of positive squares in 2 ways, for example, as 55467786256 + 362860459641 = 235516^2 + 602379^2 .

It is a cyclic number.

It is not a de Polignac number, because 418328245897 - 215 = 418328213129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (418328245817) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60924072 + ... + 60930937.

It is an arithmetic number, because the mean of its divisors is an integer number (104612526085).

Almost surely, 2418328245897 is an apocalyptic number.

It is an amenable number.

418328245897 is a deficient number, since it is larger than the sum of its proper divisors (121858443).

418328245897 is a wasteful number, since it uses less digits than its factorization.

418328245897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121858442.

The product of its digits is 30965760, while the sum is 61.

It can be divided in two parts, 418328 and 245897, that added together give a square (664225 = 8152).

The spelling of 418328245897 in words is "four hundred eighteen billion, three hundred twenty-eight million, two hundred forty-five thousand, eight hundred ninety-seven".

Divisors: 1 3433 121855009 418328245897