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104131233021 = 3283174770207
BaseRepresentation
bin110000011111010110…
…1001000010011111101
3100221210002021201120010
41200332231020103331
53201230043424041
6115500501413433
710344316606434
oct1407655102375
9327702251503
10104131233021
1140186403672
121822140a279
139a8668bc1a
14507b9b611b
152a96c83a16
hex183eb484fd

104131233021 has 16 divisors (see below), whose sum is σ = 139413991424. Its totient is φ = 69134937264.

The previous prime is 104131233001. The next prime is 104131233043. The reversal of 104131233021 is 120332131401.

It is not a de Polignac number, because 104131233021 - 26 = 104131232957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104131233001) 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, 1448100 + ... + 1518306.

It is an arithmetic number, because the mean of its divisors is an integer number (8713374464).

Almost surely, 2104131233021 is an apocalyptic number.

It is an amenable number.

104131233021 is a deficient number, since it is larger than the sum of its proper divisors (35282758403).

104131233021 is a wasteful number, since it uses less digits than its factorization.

104131233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72240.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 104131233021 its reverse (120332131401), we get a palindrome (224463364422).

The spelling of 104131233021 in words is "one hundred four billion, one hundred thirty-one million, two hundred thirty-three thousand, twenty-one".

Divisors: 1 3 283 849 1747 5241 70207 210621 494401 1483203 19868581 59605743 122651629 367954887 34710411007 104131233021