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18803034964 = 2272935365599
BaseRepresentation
bin10001100000101111…
…111000101101010100
31210112102020010220101
4101200233320231110
5302002034104324
612345450143444
71233646105630
oct214057705524
953472203811
1018803034964
117a7990651a
123789121b84
131a087069bc
14ca5345dc0
15750b2e944
hex460bf8b54

18803034964 has 48 divisors (see below), whose sum is σ = 39013632000. Its totient is φ = 7758406656.

The previous prime is 18803034941. The next prime is 18803034983. The reversal of 18803034964 is 46943030881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253837 + ... + 319435.

It is an arithmetic number, because the mean of its divisors is an integer number (812784000).

Almost surely, 218803034964 is an apocalyptic number.

18803034964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18803034964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19506816000).

18803034964 is an abundant number, since it is smaller than the sum of its proper divisors (20210597036).

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

18803034964 is a wasteful number, since it uses less digits than its factorization.

18803034964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65992 (or 65990 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 18803034964 in words is "eighteen billion, eight hundred three million, thirty-four thousand, nine hundred sixty-four".

Divisors: 1 2 4 7 14 28 29 58 116 203 353 406 706 812 1412 2471 4942 9884 10237 20474 40948 65599 71659 131198 143318 262396 286636 459193 918386 1836772 1902371 3804742 7609484 13316597 23156447 26633194 46312894 53266388 92625788 162095129 324190258 648380516 671536963 1343073926 2686147852 4700758741 9401517482 18803034964