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10531235055 = 35111723239683
BaseRepresentation
bin10011100111011010…
…11110010011101111
31000011221101011121210
421303231132103233
5133031444010210
64501000525503
7521655010125
oct116355362357
930157334553
1010531235055
114514675850
12205aa80893
13cbaa8a743
1471c929915
15419845e20
hex273b5e4ef

10531235055 has 128 divisors (see below), whose sum is σ = 20424130560. Its totient is φ = 4570818560.

The previous prime is 10531235041. The next prime is 10531235087. The reversal of 10531235055 is 55053213501.

It is not a de Polignac number, because 10531235055 - 217 = 10531103983 is a prime.

It is a super-2 number, since 2×105312350552 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15418744 + ... + 15419426.

It is an arithmetic number, because the mean of its divisors is an integer number (159563520).

Almost surely, 210531235055 is an apocalyptic number.

10531235055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10531235055 is a deficient number, since it is larger than the sum of its proper divisors (9892895505).

10531235055 is a wasteful number, since it uses less digits than its factorization.

10531235055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981.

The product of its (nonzero) digits is 11250, while the sum is 30.

Adding to 10531235055 its reverse (55053213501), we get a palindrome (65584448556).

The spelling of 10531235055 in words is "ten billion, five hundred thirty-one million, two hundred thirty-five thousand, fifty-five".

Divisors: 1 3 5 11 15 17 23 33 51 55 69 85 115 165 187 239 253 255 345 391 561 683 717 759 935 1173 1195 1265 1955 2049 2629 2805 3415 3585 3795 4063 4301 5497 5865 7513 7887 10245 11611 12189 12903 13145 15709 16491 20315 21505 22539 27485 34833 37565 39435 44693 47127 58055 60467 60945 64515 78545 82455 93449 112695 127721 134079 163237 172799 174165 181401 223465 235635 267053 280347 302335 383163 467245 489711 518397 638605 670395 801159 816185 863995 907005 1027939 1335265 1401735 1795607 1915815 2448555 2591985 2775029 2937583 3083817 3754451 4005795 5139695 5386821 8325087 8812749 8978035 11263353 13875145 14687915 15419085 18772255 26934105 30525319 41298961 41625435 44063745 56316765 63825667 91575957 123896883 152626595 191477001 206494805 319128335 457879785 619484415 702082337 957385005 2106247011 3510411685 10531235055