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18850740804 = 2232744672
BaseRepresentation
bin10001100011100101…
…110111101001000100
31210122201222212000100
4101203211313221010
5302101242201204
612354312444100
71235065440000
oct214345675104
953581885010
1018850740804
117aa382a635
1237a10a9630
131a1556aacc
14cab803700
15754e04a39
hex463977a44

18850740804 has 135 divisors (see below), whose sum is σ = 55708212287. Its totient is φ = 5374392912.

The previous prime is 18850740791. The next prime is 18850740823. The reversal of 18850740804 is 40804705881.

The square root of 18850740804 is 137298.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18850740804.

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 44 ways as a sum of consecutive naturals, for example, 40365379 + ... + 40365845.

Almost surely, 218850740804 is an apocalyptic number.

18850740804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18850740804 is the 137298-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18850740804

18850740804 is an abundant number, since it is smaller than the sum of its proper divisors (36857471483).

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

18850740804 is an frugal number, since it uses more digits than its factorization.

18850740804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The spelling of 18850740804 in words is "eighteen billion, eight hundred fifty million, seven hundred forty thousand, eight hundred four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 343 441 467 588 686 882 934 1029 1372 1401 1764 1868 2058 2401 2802 3087 3269 4116 4203 4802 5604 6174 6538 7203 8406 9604 9807 12348 13076 14406 16812 19614 21609 22883 28812 29421 39228 43218 45766 58842 68649 86436 91532 117684 137298 160181 205947 218089 274596 320362 411894 436178 480543 640724 654267 823788 872356 961086 1121267 1308534 1441629 1526623 1922172 1962801 2242534 2617068 2883258 3053246 3363801 3925602 4485068 4579869 5766516 6106492 6727602 7851204 9159738 10091403 10686361 13455204 13739607 18319476 20182806 21372722 27479214 32059083 40365612 42745444 54958428 64118166 74804527 96177249 128236332 149609054 192354498 224413581 299218108 384708996 448827162 523631689 673240743 897654324 1047263378 1346481486 1570895067 2094526756 2692962972 3141790134 4712685201 6283580268 9425370402 18850740804