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18062823001444 = 2213231252732
BaseRepresentation
bin1000001101101100101000…
…01001100000110101100100
32100221210022012011210101221
410012312110021200311210
54331420130142021234
6102225540224030124
73542665410146254
oct406662411406544
970853265153357
1018062823001444
115834444762061
122038842a62344
13a104172cb400
14466361151964
15214cc738aeb4
hex106d94260d64

18062823001444 has 81 divisors (see below), whose sum is σ = 35374987139499. Its totient is φ = 8066232120960.

The previous prime is 18062823001417. The next prime is 18062823001469. The reversal of 18062823001444 is 44410032826081.

The square root of 18062823001444 is 4250038.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2699245271844 + 15363577729600 = 1642938^2 + 3919640^2 .

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 18062823001444.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3425527992 + ... + 3425533264.

Almost surely, 218062823001444 is an apocalyptic number.

18062823001444 is the 4250038-th square number.

It is an amenable number.

18062823001444 is a deficient number, since it is larger than the sum of its proper divisors (17312164138055).

18062823001444 is an frugal number, since it uses more digits than its factorization.

18062823001444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10638 (or 5319 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 18062823001444 in words is "eighteen trillion, sixty-two billion, eight hundred twenty-three million, one thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 31 52 62 124 169 338 403 676 806 961 1612 1922 3844 5239 5273 10478 10546 12493 20956 21092 24986 49972 68549 137098 162409 163463 274196 324818 326926 649636 653852 891137 1782274 2125019 3564548 4250038 5067353 8500076 10134706 20269412 27625247 27804529 55250494 55609058 65875589 110500988 111218116 131751178 263502356 361458877 722917754 856382657 861940399 1445835508 1712765314 1723880798 3425530628 3447761596 4698965401 9397930802 11205225187 18795861604 22410450374 26720152369 44820900748 53440304738 106880609476 145667927431 291335854862 347361980797 582671709724 694723961594 1389447923188 4515705750361 9031411500722 18062823001444