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20413102104 = 23321716677371
BaseRepresentation
bin10011000000101101…
…110011100000011000
31221200121212000210200
4103000231303200120
5313301223231404
613213323342200
71321566335133
oct230055634030
957617760720
1020413102104
11872573381a
123b58381960
131c04155a55
14db90db21a
157e716b839
hex4c0b73818

20413102104 has 48 divisors (see below), whose sum is σ = 58537575720. Its totient is φ = 6404110080.

The previous prime is 20413102093. The next prime is 20413102109. The reversal of 20413102104 is 40120131402.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413102109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8337462 + ... + 8339909.

Almost surely, 220413102104 is an apocalyptic number.

20413102104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20413102104 is an abundant number, since it is smaller than the sum of its proper divisors (38124473616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20413102104 is a wasteful number, since it uses less digits than its factorization.

20413102104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16677400 (or 16677393 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20413102104 its reverse (40120131402), we get a palindrome (60533233506).

The spelling of 20413102104 in words is "twenty billion, four hundred thirteen million, one hundred two thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 16677371 33354742 50032113 66709484 100064226 133418968 150096339 200128452 283515307 300192678 400256904 567030614 600385356 850545921 1134061228 1200770712 1701091842 2268122456 2551637763 3402183684 5103275526 6804367368 10206551052 20413102104