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17839020948 = 2237267452813
BaseRepresentation
bin10000100111010010…
…011101101110010100
31201001020021011021120
4100213102131232110
5243013242132243
612110052043540
71201032114300
oct204722355624
951036234246
1017839020948
117624731521
12355a3035b0
1318b3a892c8
14c132c4d00
156e61aac83
hex42749db94

17839020948 has 72 divisors (see below), whose sum is σ = 49142997792. Its totient is φ = 5020779456.

The previous prime is 17839020943. The next prime is 17839020949. The reversal of 17839020948 is 84902093871.

It is a self number, because there is not a number n which added to its sum of digits gives 17839020948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17839020943) 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 23 ways as a sum of consecutive naturals, for example, 187011 + ... + 265802.

It is an arithmetic number, because the mean of its divisors is an integer number (682541636).

Almost surely, 217839020948 is an apocalyptic number.

It is an amenable number.

17839020948 is an abundant number, since it is smaller than the sum of its proper divisors (31303976844).

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

17839020948 is a wasteful number, since it uses less digits than its factorization.

17839020948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452901 (or 452892 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 17839020948 in words is "seventeen billion, eight hundred thirty-nine million, twenty thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 67 84 98 134 147 196 201 268 294 402 469 588 804 938 1407 1876 2814 3283 5628 6566 9849 13132 19698 39396 452813 905626 1358439 1811252 2716878 3169691 5433756 6339382 9509073 12678764 19018146 22187837 30338471 38036292 44375674 60676942 66563511 88751348 91015413 121353884 133127022 182030826 212369297 266254044 364061652 424738594 637107891 849477188 1274215782 1486585079 2548431564 2973170158 4459755237 5946340316 8919510474 17839020948