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29928471552000 = 21332537463921
BaseRepresentation
bin1101100111000010000111…
…11010100110000000000000
310220222010121122022010010100
412303201003322212000000
512410322002204131000
6143352541112202400
76206155265536020
oct663410372460000
9126863548263110
1029928471552000
119599658a5941a
123434408699400
131391320451bc8
1475678d787a80
1536d7953eea00
hex1b3843ea6000

29928471552000 has 672 divisors, whose sum is σ = 123309443260224. Its totient is φ = 6840778752000.

The previous prime is 29928471551971. The next prime is 29928471552053. The reversal of 29928471552000 is 25517482992.

29928471552000 is a `hidden beast` number, since 2 + 9 + 9 + 2 + 84 + 7 + 1 + 552 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64280040 + ... + 64743960.

Almost surely, 229928471552000 is an apocalyptic number.

29928471552000 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 29928471552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61654721630112).

29928471552000 is an abundant number, since it is smaller than the sum of its proper divisors (93380971708224).

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

29928471552000 is an equidigital number, since it uses as much as digits as its factorization.

29928471552000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463975 (or 463938 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 29928471552000 in words is "twenty-nine trillion, nine hundred twenty-eight billion, four hundred seventy-one million, five hundred fifty-two thousand".