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18244211317276 = 2272341690963919
BaseRepresentation
bin1000010010111110011111…
…01111000001101000011100
32101121010111110021221221111
410021133033233001220130
54342403121044123101
6102445135221111404
73562046364326350
oct411371757015034
971533443257844
1018244211317276
1158a436573249a
122067a25558564
13a245637600c9
1447104b49b460
152198918cc251
hex1097cfbc1a1c

18244211317276 has 48 divisors (see below), whose sum is σ = 39003531356160. Its totient is φ = 7296578974080.

The previous prime is 18244211317271. The next prime is 18244211317303. The reversal of 18244211317276 is 67271311244281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18244211317271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345455556 + ... + 345508363.

It is an arithmetic number, because the mean of its divisors is an integer number (812573569920).

Almost surely, 218244211317276 is an apocalyptic number.

It is an amenable number.

18244211317276 is an abundant number, since it is smaller than the sum of its proper divisors (20759320038884).

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

18244211317276 is a wasteful number, since it uses less digits than its factorization.

18244211317276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690963994 (or 690963992 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The spelling of 18244211317276 in words is "eighteen trillion, two hundred forty-four billion, two hundred eleven million, three hundred seventeen thousand, two hundred seventy-six".

Divisors: 1 2 4 7 14 23 28 41 46 82 92 161 164 287 322 574 644 943 1148 1886 3772 6601 13202 26404 690963919 1381927838 2763855676 4836747433 9673494866 15892170137 19346989732 28329520679 31784340274 56659041358 63568680548 111245190959 113318082716 198306644753 222490381918 396613289506 444980763836 651578975617 793226579012 1303157951234 2606315902468 4561052829319 9122105658638 18244211317276