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16023151530 = 23251572834007
BaseRepresentation
bin11101110110000110…
…11110001110101010
31112100200101102201200
432323003132032222
5230303411322110
611205543425030
71105032353331
oct167303361652
945320342650
1016023151530
1168827189a1
123132155176
131684800c69
14ac007ad18
1563ba6a6c0
hex3bb0de3aa

16023151530 has 96 divisors (see below), whose sum is σ = 42084192384. Its totient is φ = 4229566848.

The previous prime is 16023151483. The next prime is 16023151531. The reversal of 16023151530 is 3515132061.

16023151530 is a `hidden beast` number, since 1 + 60 + 23 + 1 + 51 + 530 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16023151494 and 16023151503.

It is not an unprimeable number, because it can be changed into a prime (16023151531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3996787 + ... + 4000793.

It is an arithmetic number, because the mean of its divisors is an integer number (438377004).

Almost surely, 216023151530 is an apocalyptic number.

16023151530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16023151530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21042096192).

16023151530 is an abundant number, since it is smaller than the sum of its proper divisors (26061040854).

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

16023151530 is a wasteful number, since it uses less digits than its factorization.

16023151530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460 (or 4457 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 16023151530 its reverse (3515132061), we get a palindrome (19538283591).

The spelling of 16023151530 in words is "sixteen billion, twenty-three million, one hundred fifty-one thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 157 283 314 471 566 785 849 942 1413 1415 1570 1698 2355 2547 2826 2830 4007 4245 4710 5094 7065 8014 8490 12021 12735 14130 20035 24042 25470 36063 40070 44431 60105 72126 88862 120210 133293 180315 222155 266586 360630 399879 444310 629099 666465 799758 1133981 1258198 1332930 1887297 1999395 2267962 3145495 3401943 3774594 3998790 5661891 5669905 6290990 6803886 9436485 10205829 11323782 11339810 17009715 18872970 20411658 28309455 34019430 51029145 56618910 102058290 178035017 356070034 534105051 890175085 1068210102 1602315153 1780350170 2670525255 3204630306 5341050510 8011575765 16023151530