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29940482880 = 26325711374189
BaseRepresentation
bin11011111000100101…
…111000001101000000
32212021121022010020100
4123320211320031000
5442304230423010
621430544242400
72106644622360
oct337045701500
985247263210
1029940482880
1111774692a30
125977010400
132a91c56b79
1416405949a0
15ba37be2c0
hex6f8978340

29940482880 has 1344 divisors, whose sum is σ = 136598192640. Its totient is φ = 5839257600.

The previous prime is 29940482867. The next prime is 29940482881. The reversal of 29940482880 is 8828404992.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29940482881) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 336409876 + ... + 336409964.

It is an arithmetic number, because the mean of its divisors is an integer number (101635560).

Almost surely, 229940482880 is an apocalyptic number.

29940482880 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 29940482880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68299096320).

29940482880 is an abundant number, since it is smaller than the sum of its proper divisors (106657709760).

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

29940482880 is a wasteful number, since it uses less digits than its factorization.

29940482880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 29940482880 in words is "twenty-nine billion, nine hundred forty million, four hundred eighty-two thousand, eight hundred eighty".