Search a number
-
+
18369700719030 = 236583128323663
BaseRepresentation
bin1000010110101000001110…
…11111000110100110110110
32102001010102000202002000000
410023110013133012212312
54401432121341002110
6103022531330332130
73604111210542453
oct413240737064666
972033360662000
1018369700719030
115942601182381
12208820772a046
13a33341cba19b
1447715389c82a
1521cc8875c1c0
hex10b5077c69b6

18369700719030 has 224 divisors, whose sum is σ = 50214036450816. Its totient is φ = 4835591307072.

The previous prime is 18369700719023. The next prime is 18369700719031. The reversal of 18369700719030 is 3091700796381.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18369700719031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 776292979 + ... + 776316641.

It is an arithmetic number, because the mean of its divisors is an integer number (224169805584).

Almost surely, 218369700719030 is an apocalyptic number.

18369700719030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18369700719030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25107018225408).

18369700719030 is an abundant number, since it is smaller than the sum of its proper divisors (31844335731786).

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

18369700719030 is a wasteful number, since it uses less digits than its factorization.

18369700719030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25054 (or 25039 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 18369700719030 in words is "eighteen trillion, three hundred sixty-nine billion, seven hundred million, seven hundred nineteen thousand, thirty".