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18299802006 = 2321976170313
BaseRepresentation
bin10001000010110000…
…001101000110010110
31202020100022021001200
4101002300031012112
5244434222131011
612223512133330
71215325515303
oct210260150626
952210267050
1018299802006
117840841112
123668697246
13195838c215
14c5858c0aa
15721878856
hex442c0d196

18299802006 has 48 divisors (see below), whose sum is σ = 41791829040. Its totient is φ = 5771208960.

The previous prime is 18299801941. The next prime is 18299802007. The reversal of 18299802006 is 60020899281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18299802007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 225106 + ... + 295418.

It is an arithmetic number, because the mean of its divisors is an integer number (870663105).

Almost surely, 218299802006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18299802006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20895914520).

18299802006 is an abundant number, since it is smaller than the sum of its proper divisors (23492027034).

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

18299802006 is a wasteful number, since it uses less digits than its factorization.

18299802006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71101 (or 71098 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 18299802006 in words is "eighteen billion, two hundred ninety-nine million, eight hundred two thousand, six".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 761 1522 2283 4566 6849 13698 14459 28918 43377 70313 86754 130131 140626 210939 260262 421878 632817 1265634 1335947 2671894 4007841 8015682 12023523 24047046 53508193 107016386 160524579 321049158 481573737 963147474 1016655667 2033311334 3049967001 6099934002 9149901003 18299802006