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74250198400 = 2752743157491
BaseRepresentation
bin100010100100110101…
…0000001110110000000
321002122121211220000011
41011021222001312000
52204031022322100
654035435234304
75235663162430
oct1051152016600
9232577756004
1074250198400
1129542335034
12124822a8994
137003b4ab51
1438452982c0
151de8808bba
hex1149a81d80

74250198400 has 384 divisors, whose sum is σ = 216305084160. Its totient is φ = 24656486400.

The previous prime is 74250198383. The next prime is 74250198419. The reversal of 74250198400 is 489105247.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 151222155 + ... + 151222645.

It is an arithmetic number, because the mean of its divisors is an integer number (563294490).

Almost surely, 274250198400 is an apocalyptic number.

74250198400 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 74250198400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108152542080).

74250198400 is an abundant number, since it is smaller than the sum of its proper divisors (142054885760).

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

74250198400 is a wasteful number, since it uses less digits than its factorization.

74250198400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 74250198400 in words is "seventy-four billion, two hundred fifty million, one hundred ninety-eight thousand, four hundred".