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18830736460 = 22517291909811
BaseRepresentation
bin10001100010011001…
…100011110001001100
31210121100100112012201
4101202121203301030
5302031132031320
612352320011244
71234433422204
oct214231436114
953540315181
1018830736460
117a93507018
123796460b24
131a11385713
14ca8cb7404
157532a270a
hex462663c4c

18830736460 has 48 divisors (see below), whose sum is σ = 43314536160. Its totient is φ = 6844759040.

The previous prime is 18830736427. The next prime is 18830736461. The reversal of 18830736460 is 6463703881.

It is a self number, because there is not a number n which added to its sum of digits gives 18830736460.

It is not an unprimeable number, because it can be changed into a prime (18830736461) 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, 945046 + ... + 964765.

It is an arithmetic number, because the mean of its divisors is an integer number (902386170).

Almost surely, 218830736460 is an apocalyptic number.

18830736460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18830736460 is an abundant number, since it is smaller than the sum of its proper divisors (24483799700).

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

18830736460 is a wasteful number, since it uses less digits than its factorization.

18830736460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909866 (or 1909864 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 18830736460 in words is "eighteen billion, eight hundred thirty million, seven hundred thirty-six thousand, four hundred sixty".

Divisors: 1 2 4 5 10 17 20 29 34 58 68 85 116 145 170 290 340 493 580 986 1972 2465 4930 9860 1909811 3819622 7639244 9549055 19098110 32466787 38196220 55384519 64933574 110769038 129867148 162333935 221538076 276922595 324667870 553845190 649335740 941536823 1107690380 1883073646 3766147292 4707684115 9415368230 18830736460