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409922435081 = 1493747736721
BaseRepresentation
bin1011111011100010100…
…01111111100000001001
31110012002012101022001102
411331301101333200021
523204010120410311
6512152112231145
741421155131115
oct5756121774011
91405065338042
10409922435081
11148935589775
126754223b4b5
132c86a23b8c3
1415ba9cd4745
15a9e2a8443b
hex5f7147f809

409922435081 has 8 divisors (see below), whose sum is σ = 410263031304. Its totient is φ = 409581930240.

The previous prime is 409922435053. The next prime is 409922435119. The reversal of 409922435081 is 180534229904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 95135233600 + 314787201481 = 308440^2 + 561059^2 .

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 409922435081 - 226 = 409855326217 is a prime.

It is a super-2 number, since 2×4099224350812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409922735081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11144801 + ... + 11181521.

It is an arithmetic number, because the mean of its divisors is an integer number (51282878913).

Almost surely, 2409922435081 is an apocalyptic number.

It is an amenable number.

409922435081 is a deficient number, since it is larger than the sum of its proper divisors (340596223).

409922435081 is a wasteful number, since it uses less digits than its factorization.

409922435081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45691.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 409922435081 in words is "four hundred nine billion, nine hundred twenty-two million, four hundred thirty-five thousand, eighty-one".

Divisors: 1 1493 7477 36721 11163161 54824453 274562917 409922435081