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29306880 = 21233553
BaseRepresentation
bin110111111001…
…1000000000000
32001010221111000
41233303000000
530000310010
62524052000
7504050541
oct157630000
961127430
1029306880
11155a7769
129994000
1360c1665
143c6c4c8
15288d7c0
hex1bf3000

29306880 has 208 divisors, whose sum is σ = 106155360. Its totient is φ = 7667712.

The previous prime is 29306839. The next prime is 29306881. The reversal of 29306880 is 8860392.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (29306881) 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, 552934 + ... + 552986.

Almost surely, 229306880 is an apocalyptic number.

29306880 is a gapful number since it is divisible by the number (20) 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 29306880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53077680).

29306880 is an abundant number, since it is smaller than the sum of its proper divisors (76848480).

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

29306880 is an equidigital number, since it uses as much as digits as its factorization.

29306880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 29306880 is about 5413.5829170707. The cubic root of 29306880 is about 308.3115978510.

The spelling of 29306880 in words is "twenty-nine million, three hundred six thousand, eight hundred eighty".