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1805468453131 = 72311214089771
BaseRepresentation
bin11010010001011110010…
…011100100100100001011
320101121020012102100220211
4122101132103210210023
5214040044411000011
63501230514501551
7244304122432060
oct32213623444413
96347205370824
101805468453131
11636770967442
12251ab38948b7
13101341161aa5
1463556b72c67
1531e6eb95b21
hex1a45e4e490b

1805468453131 has 8 divisors (see below), whose sum is σ = 2153105236224. Its totient is φ = 1480259849640.

The previous prime is 1805468453093. The next prime is 1805468453137. The reversal of 1805468453131 is 1313548645081.

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

It is a cyclic number.

It is not a de Polignac number, because 1805468453131 - 229 = 1804931582219 is a prime.

It is a super-2 number, since 2×18054684531312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1805468453137) 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 7 ways as a sum of consecutive naturals, for example, 5607044725 + ... + 5607045046.

It is an arithmetic number, because the mean of its divisors is an integer number (269138154528).

Almost surely, 21805468453131 is an apocalyptic number.

1805468453131 is a deficient number, since it is larger than the sum of its proper divisors (347636783093).

1805468453131 is a wasteful number, since it uses less digits than its factorization.

1805468453131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11214089801.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 1805468453131 in words is "one trillion, eight hundred five billion, four hundred sixty-eight million, four hundred fifty-three thousand, one hundred thirty-one".

Divisors: 1 7 23 161 11214089771 78498628397 257924064733 1805468453131