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94121819880 = 233511217973931
BaseRepresentation
bin101011110101000011…
…0001111111011101000
322222221111210212000220
41113222012033323220
53020230141214010
6111123341130040
76541266161064
oct1275206177350
9288844725026
1094121819880
1136a0a34a400
12162a9259920
138b4ca5705a
1447ac4c2aa4
1526ad166970
hex15ea18fee8

94121819880 has 384 divisors, whose sum is σ = 332097978240. Its totient is φ = 21248409600.

The previous prime is 94121819879. The next prime is 94121819881. The reversal of 94121819880 is 8891812149.

It is an interprime number because it is at equal distance from previous prime (94121819879) and next prime (94121819881).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (94121819881) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23941515 + ... + 23945445.

It is an arithmetic number, because the mean of its divisors is an integer number (864838485).

Almost surely, 294121819880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 94121819880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166048989120).

94121819880 is an abundant number, since it is smaller than the sum of its proper divisors (237976158360).

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

94121819880 is a wasteful number, since it uses less digits than its factorization.

94121819880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081 (or 4066 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 51.

The spelling of 94121819880 in words is "ninety-four billion, one hundred twenty-one million, eight hundred nineteen thousand, eight hundred eighty".