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29131406304 = 253721121331127
BaseRepresentation
bin11011001000010111…
…011111101111100000
32210012012212202211020
4123020113133233200
5434130120000204
621214403045440
72050621603500
oct331027375740
983165782736
1029131406304
1111399a12800
125790070880
132993446830
1415a4d45a00
15b57752bd9
hex6c85dfbe0

29131406304 has 864 divisors, whose sum is σ = 109550665728. Its totient is φ = 6706022400.

The previous prime is 29131406299. The next prime is 29131406333. The reversal of 29131406304 is 40360413192.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 229381089 + ... + 229381215.

It is an arithmetic number, because the mean of its divisors is an integer number (126794752).

Almost surely, 229131406304 is an apocalyptic number.

29131406304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29131406304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54775332864).

29131406304 is an abundant number, since it is smaller than the sum of its proper divisors (80419259424).

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

29131406304 is a wasteful number, since it uses less digits than its factorization.

29131406304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

Adding to 29131406304 its reverse (40360413192), we get a palindrome (69491819496).

The spelling of 29131406304 in words is "twenty-nine billion, one hundred thirty-one million, four hundred six thousand, three hundred four".