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18803539876 = 221122322712
BaseRepresentation
bin10001100000110001…
…110011111110100100
31210112110011210111211
4101200301303332210
5302002201234001
612345505041204
71233653310652
oct214061637644
953473153454
1018803539876
117a7a120900
123789326204
131a08852774
14ca5437dd2
15750bce351
hex460c73fa4

18803539876 has 81 divisors (see below), whose sum is σ = 37950622059. Its totient is φ = 8145284400.

The previous prime is 18803539847. The next prime is 18803539879. The reversal of 18803539876 is 67893530881.

The square root of 18803539876 is 137126.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×188035398762 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18803539876.

It is not an unprimeable number, because it can be changed into a prime (18803539879) 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 26 ways as a sum of consecutive naturals, for example, 69385621 + ... + 69385891.

Almost surely, 218803539876 is an apocalyptic number.

18803539876 is the 137126-th square number.

It is an amenable number.

18803539876 is an abundant number, since it is smaller than the sum of its proper divisors (19147082183).

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

18803539876 is a wasteful number, since it uses less digits than its factorization.

18803539876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 18803539876 in words is "eighteen billion, eight hundred three million, five hundred thirty-nine thousand, eight hundred seventy-six".

Divisors: 1 2 4 11 22 23 44 46 92 121 242 253 271 484 506 529 542 1012 1058 1084 2116 2783 2981 5566 5819 5962 6233 11132 11638 11924 12466 23276 24932 32791 64009 65582 68563 73441 128018 131164 137126 143359 146882 256036 274252 286718 293764 573436 754193 807851 1508386 1576949 1615702 1689143 3016772 3153898 3231404 3378286 6307796 6756572 8886361 17346439 17772722 18580573 34692878 35545444 37161146 38850289 69385756 74322292 77700578 155401156 204386303 408772606 427353179 817545212 854706358 1709412716 4700884969 9401769938 18803539876