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70381747800 = 23335273133779
BaseRepresentation
bin100000110001100010…
…1000011111001011000
320201200000200020102000
41001203011003321120
52123120211412200
652155525041000
75041060662000
oct1014305037130
9221600606360
1070381747800
1127937730921
1211782856160
136838568220
1435995c9000
151c6ddbb300
hex1063143e58

70381747800 has 1536 divisors, whose sum is σ = 316646400000. Its totient is φ = 14265538560.

The previous prime is 70381747789. The next prime is 70381747829. The reversal of 70381747800 is 874718307.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 890908161 + ... + 890908239.

It is an arithmetic number, because the mean of its divisors is an integer number (206150000).

Almost surely, 270381747800 is an apocalyptic number.

70381747800 is a gapful number since it is divisible by the number (70) 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 70381747800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158323200000).

70381747800 is an abundant number, since it is smaller than the sum of its proper divisors (246264652200).

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

70381747800 is a wasteful number, since it uses less digits than its factorization.

70381747800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 70381747800 in words is "seventy billion, three hundred eighty-one million, seven hundred forty-seven thousand, eight hundred".