Search a number
-
+
18493008088 = 2331354721023
BaseRepresentation
bin10001001110010001…
…001110100011011000
31202201210212010222111
4101032101032203120
5300333202224323
612255013202104
71223162655322
oct211621164330
952653763874
1018493008088
11792a903765
123701330334
131989408049
14c760c2612
157337dec0d
hex44e44e8d8

18493008088 has 32 divisors (see below), whose sum is σ = 35804712960. Its totient is φ = 8945281440.

The previous prime is 18493008071. The next prime is 18493008089. The reversal of 18493008088 is 88080039481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18493008089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869145 + ... + 890167.

It is an arithmetic number, because the mean of its divisors is an integer number (1118897280).

Almost surely, 218493008088 is an apocalyptic number.

It is an amenable number.

18493008088 is a deficient number, since it is larger than the sum of its proper divisors (17311704872).

18493008088 is a wasteful number, since it uses less digits than its factorization.

18493008088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24607 (or 24603 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 18493008088 in words is "eighteen billion, four hundred ninety-three million, eight thousand, eighty-eight".

Divisors: 1 2 4 8 31 62 124 248 3547 7094 14188 21023 28376 42046 84092 109957 168184 219914 439828 651713 879656 1303426 2606852 5213704 74568581 149137162 298274324 596548648 2311626011 4623252022 9246504044 18493008088