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801106381 = 11322731231
BaseRepresentation
bin101111101111111…
…110100111001101
32001211102102100201
4233233332213031
53120040401011
6211254253501
725565202055
oct5757764715
92054372321
10801106381
11381227099
121a4357291
13c9c7c65a
1478576565
154a4e4cc1
hex2fbfe9cd

801106381 has 8 divisors (see below), whose sum is σ = 811782144. Its totient is φ = 790493760.

The previous prime is 801106379. The next prime is 801106387. The reversal of 801106381 is 183601108.

It is a happy number.

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

It is not a de Polignac number, because 801106381 - 21 = 801106379 is a prime.

It is a super-2 number, since 2×8011063812 = 1283542867357834322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801106387) 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, 10036 + ... + 41266.

It is an arithmetic number, because the mean of its divisors is an integer number (101472768).

Almost surely, 2801106381 is an apocalyptic number.

It is an amenable number.

801106381 is a deficient number, since it is larger than the sum of its proper divisors (10675763).

801106381 is a wasteful number, since it uses less digits than its factorization.

801106381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31571.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 801106381 is about 28303.8227276811. The cubic root of 801106381 is about 928.7455167350.

Adding to 801106381 its reverse (183601108), we get a palindrome (984707489).

The spelling of 801106381 in words is "eight hundred one million, one hundred six thousand, three hundred eighty-one".

Divisors: 1 113 227 25651 31231 3529103 7089437 801106381