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18803075785030 = 2543251174215471
BaseRepresentation
bin1000100011001111011101…
…01001110010000101000110
32110120120000200101110112101
410101213232221302011012
54431032144400110110
6103554002550142314
73650322514041055
oct421475651620506
973516020343471
1018803075785030
115a9a3810a3849
1221381b405199a
13a65178cc6294
1449010642639c
152291a020e13a
hex1119eea72146

18803075785030 has 32 divisors (see below), whose sum is σ = 34770620763648. Its totient is φ = 7317049740000.

The previous prime is 18803075784971. The next prime is 18803075785031. The reversal of 18803075785030 is 3058757030881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18803075785031) 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, 86999806 + ... + 87215665.

It is an arithmetic number, because the mean of its divisors is an integer number (1086581898864).

Almost surely, 218803075785030 is an apocalyptic number.

18803075785030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18803075785030 is a deficient number, since it is larger than the sum of its proper divisors (15967544978618).

18803075785030 is a wasteful number, since it uses less digits than its factorization.

18803075785030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174215772.

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 18803075785030 in words is "eighteen trillion, eight hundred three billion, seventy-five million, seven hundred eighty-five thousand, thirty".

Divisors: 1 2 5 10 43 86 215 251 430 502 1255 2510 10793 21586 53965 107930 174215471 348430942 871077355 1742154710 7491265253 14982530506 37456326265 43728083221 74912652530 87456166442 218640416105 437280832210 1880307578503 3760615157006 9401537892515 18803075785030