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52447989484800 = 28325271319526637
BaseRepresentation
bin10111110110011011111111…
…10010000100110100000000
320212200222102120020220100200
423323031333302010310000
523333301440302003200
6303314135043445200
714022146033624460
oct1373157762046400
9225628376226320
1052447989484800
1115791081825508
125a70931686800
132335a93978b20
14cd46d3955ba0
1560e45c63c800
hex2fb37fc84d00

52447989484800 has 1296 divisors, whose sum is σ = 242932800888960. Its totient is φ = 10483511132160.

The previous prime is 52447989484789. The next prime is 52447989484801. The reversal of 52447989484800 is 848498974425.

It is a happy number.

52447989484800 is a `hidden beast` number, since 5 + 2 + 447 + 98 + 94 + 8 + 4 + 8 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52447989484801) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 99327082 + ... + 99853718.

Almost surely, 252447989484800 is an apocalyptic number.

52447989484800 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 52447989484800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121466400444480).

52447989484800 is an abundant number, since it is smaller than the sum of its proper divisors (190484811404160).

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

52447989484800 is a wasteful number, since it uses less digits than its factorization.

52447989484800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526708 (or 526686 counting only the distinct ones).

The product of its (nonzero) digits is 743178240, while the sum is 72.

The spelling of 52447989484800 in words is "fifty-two trillion, four hundred forty-seven billion, nine hundred eighty-nine million, four hundred eighty-four thousand, eight hundred".