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16025398038 = 23213194318363
BaseRepresentation
bin11101110110011000…
…00010101100010110
31112100211121120100200
432323030002230112
5230310000214123
611210103521330
71105060431036
oct167314025426
945324546320
1016025398038
116883a12811
123132a59246
131685109660
14ac04a38c6
1563bd61143
hex3bb302b16

16025398038 has 96 divisors (see below), whose sum is σ = 39456668160. Its totient is φ = 4659975360.

The previous prime is 16025398027. The next prime is 16025398069. The reversal of 16025398038 is 83089352061.

It is a happy number.

16025398038 is a `hidden beast` number, since 1 + 6 + 0 + 2 + 539 + 80 + 38 = 666.

16025398038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16025397984 and 16025398002.

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 47 ways as a sum of consecutive naturals, for example, 1912045 + ... + 1920407.

It is an arithmetic number, because the mean of its divisors is an integer number (411006960).

Almost surely, 216025398038 is an apocalyptic number.

16025398038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16025398038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19728334080).

16025398038 is an abundant number, since it is smaller than the sum of its proper divisors (23431270122).

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

16025398038 is a wasteful number, since it uses less digits than its factorization.

16025398038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8834 (or 8831 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 16025398038 in words is "sixteen billion, twenty-five million, three hundred ninety-eight thousand, thirty-eight".

Divisors: 1 2 3 6 9 13 18 19 26 38 39 57 78 114 117 171 234 247 342 431 494 741 862 1293 1482 2223 2586 3879 4446 5603 7758 8189 8363 11206 16378 16726 16809 24567 25089 33618 49134 50178 50427 73701 75267 100854 106457 108719 147402 150534 158897 212914 217438 317794 319371 326157 476691 638742 652314 953382 958113 978471 1430073 1916226 1956942 2065661 2860146 3604453 4131322 6196983 7208906 10813359 12393966 18590949 21626718 32440077 37181898 46857889 64880154 68484607 93715778 136969214 140573667 205453821 281147334 410907642 421721001 616361463 843442002 890299891 1232722926 1780599782 2670899673 5341799346 8012699019 16025398038