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16001042481 = 3317243103463
BaseRepresentation
bin11101110011011110…
…01000100000110001
31112022010210011211000
432321233020200301
5230232231324411
611203433512213
71104343421424
oct167157104061
945263704730
1016001042481
116871198056
123126872669
13168005c898
14abb1639bb
15639b4e956
hex3b9bc8831

16001042481 has 96 divisors (see below), whose sum is σ = 26073681920. Its totient is φ = 9690202368.

The previous prime is 16001042479. The next prime is 16001042507. The reversal of 16001042481 is 18424010061.

It is a happy number.

16001042481 is a `hidden beast` number, since 1 + 600 + 10 + 4 + 2 + 48 + 1 = 666.

16001042481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16001042481 - 21 = 16001042479 is a prime.

It is a super-2 number, since 2×160010424812 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16001042411) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 34559256 + ... + 34559718.

Almost surely, 216001042481 is an apocalyptic number.

It is an amenable number.

16001042481 is a deficient number, since it is larger than the sum of its proper divisors (10072639439).

16001042481 is a wasteful number, since it uses less digits than its factorization.

16001042481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The spelling of 16001042481 in words is "sixteen billion, one million, forty-two thousand, four hundred eighty-one".

Divisors: 1 3 9 17 27 43 51 103 129 153 289 309 387 459 463 731 867 927 1161 1389 1751 2193 2601 2781 4167 4429 5253 6579 7803 7871 12427 12501 13287 15759 19737 19909 23613 29767 37281 39861 47277 47689 59727 70839 75293 89301 111843 119583 133807 143067 179181 212517 225879 267903 335529 338453 401421 429201 537543 677637 803709 810713 1015359 1204263 1279981 1287603 2032911 2050627 2432139 3046077 3612789 3839943 5753701 6151881 7296417 9138231 11519829 13782121 17261103 18455643 21889251 34559487 34860659 41346363 51783309 55366929 104581977 124039089 155349927 313745931 372117267 592631203 941237793 1777893609 5333680827 16001042481