Search a number
-
+
18941410593 = 3271923688003
BaseRepresentation
bin10001101000111111…
…101111110100100001
31210220001121100120200
4101220333233310201
5302243000114333
612411312055413
71240246222260
oct215077576441
953801540520
1018941410593
11803aa29146
123807534569
131a2b295881
14cb98865d7
1575cd64c13
hex468fefd21

18941410593 has 48 divisors (see below), whose sum is σ = 34345159680. Its totient is φ = 9808156512.

The previous prime is 18941410583. The next prime is 18941410597. The reversal of 18941410593 is 39501414981.

18941410593 is a `hidden beast` number, since 1 + 8 + 9 + 41 + 4 + 10 + 593 = 666.

It is not a de Polignac number, because 18941410593 - 24 = 18941410577 is a prime.

It is a super-2 number, since 2×189414105932 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18941410597) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 316471 + ... + 371532.

It is an arithmetic number, because the mean of its divisors is an integer number (715524160).

Almost surely, 218941410593 is an apocalyptic number.

It is an amenable number.

18941410593 is a deficient number, since it is larger than the sum of its proper divisors (15403749087).

18941410593 is a wasteful number, since it uses less digits than its factorization.

18941410593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688058 (or 688055 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 18941410593 in words is "eighteen billion, nine hundred forty-one million, four hundred ten thousand, five hundred ninety-three".

Divisors: 1 3 7 9 19 21 23 57 63 69 133 161 171 207 399 437 483 1197 1311 1449 3059 3933 9177 27531 688003 2064009 4816021 6192027 13072057 14448063 15824069 39216171 43344189 47472207 91504399 110768483 117648513 142416621 274513197 300657311 332305449 823539591 901971933 996916347 2104601177 2705915799 6313803531 18941410593