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52670521728000 = 21033531121731239
BaseRepresentation
bin10111111100111010011111…
…01111001101110000000000
320220111020211012221010202000
423332131033233031300000
523400423212030244000
6304004300442024000
714044214425524561
oct1376351757156000
9226436735833660
1052670521728000
1115867496441500
125aa7a971a8000
132350a69181087
14d013a4364168
15615133cc7000
hex2fe74fbcdc00

52670521728000 has 4224 divisors, whose sum is σ = 234848504217600. Its totient is φ = 11581194240000.

The previous prime is 52670521727951. The next prime is 52670521728001. The reversal of 52670521728000 is 82712507625.

52670521728000 is a `hidden beast` number, since 52 + 6 + 7 + 0 + 521 + 72 + 8 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (4224).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52670521728001) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 220378751881 + ... + 220378752119.

Almost surely, 252670521728000 is an apocalyptic number.

52670521728000 is a gapful number since it is divisible by the number (50) 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 52670521728000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117424252108800).

52670521728000 is an abundant number, since it is smaller than the sum of its proper divisors (182177982489600).

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

52670521728000 is a wasteful number, since it uses less digits than its factorization.

52670521728000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 52670521728000 in words is "fifty-two trillion, six hundred seventy billion, five hundred twenty-one million, seven hundred twenty-eight thousand".