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18490996310 = 2541431048837
BaseRepresentation
bin10001001110001001…
…100011011001010110
31202201200001221100012
4101032021203121112
5300332143340220
612254502120222
71223136606143
oct211611433126
952650057305
1018490996310
11792975a236
123700720072
131988b82447
14c75b1b3ca
15733543ac5
hex44e263656

18490996310 has 32 divisors (see below), whose sum is σ = 34888547232. Its totient is φ = 7048177920.

The previous prime is 18490996253. The next prime is 18490996313. The reversal of 18490996310 is 1369909481.

It is a super-2 number, since 2×184909963102 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18490996313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506789 + ... + 542048.

It is an arithmetic number, because the mean of its divisors is an integer number (1090267101).

Almost surely, 218490996310 is an apocalyptic number.

18490996310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18490996310 is a deficient number, since it is larger than the sum of its proper divisors (16397550922).

18490996310 is a wasteful number, since it uses less digits than its factorization.

18490996310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048928.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 18490996310 in words is "eighteen billion, four hundred ninety million, nine hundred ninety-six thousand, three hundred ten".

Divisors: 1 2 5 10 41 43 82 86 205 215 410 430 1763 3526 8815 17630 1048837 2097674 5244185 10488370 43002317 45099991 86004634 90199982 215011585 225499955 430023170 450999910 1849099631 3698199262 9245498155 18490996310