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18201929102 = 271498725757
BaseRepresentation
bin10000111100111010…
…110110010110001110
31201222112010210200022
4100330322312112032
5244234143212402
612210054302142
71213026562460
oct207472662616
951875123608
1018201929102
1177a0572815
12363b957952
131941011966
14c49592130
15717e942a2
hex43ceb658e

18201929102 has 16 divisors (see below), whose sum is σ = 31412728800. Its totient is φ = 7748471328.

The previous prime is 18201929101. The next prime is 18201929143. The reversal of 18201929102 is 20192910281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18201929101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4360793 + ... + 4364964.

It is an arithmetic number, because the mean of its divisors is an integer number (1963295550).

Almost surely, 218201929102 is an apocalyptic number.

18201929102 is a deficient number, since it is larger than the sum of its proper divisors (13210799698).

18201929102 is a wasteful number, since it uses less digits than its factorization.

18201929102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8725915.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 18201929102 in words is "eighteen billion, two hundred one million, nine hundred twenty-nine thousand, one hundred two".

Divisors: 1 2 7 14 149 298 1043 2086 8725757 17451514 61080299 122160598 1300137793 2600275586 9100964551 18201929102