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105250553472 = 2731092514587
BaseRepresentation
bin110001000000101101…
…0111111111010000000
3101001200002111002120010
41202001122333322000
53211023120202342
6120203524344520
710414130641401
oct1420132777200
9331602432503
10105250553472
1140700214699
1218494245140
139c0454590c
1451465039a8
152b1018429c
hex18816bfe80

105250553472 has 64 divisors (see below), whose sum is σ = 282136773600. Its totient is φ = 34761636864.

The previous prime is 105250553293. The next prime is 105250553477. The reversal of 105250553472 is 274355052501.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1052505534722 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105250553472.

It is not an unprimeable number, because it can be changed into a prime (105250553477) 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 7 ways as a sum of consecutive naturals, for example, 1215438 + ... + 1299149.

Almost surely, 2105250553472 is an apocalyptic number.

105250553472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105250553472 is an abundant number, since it is smaller than the sum of its proper divisors (176886220128).

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

105250553472 is a wasteful number, since it uses less digits than its factorization.

105250553472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514713 (or 2514701 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 39.

The spelling of 105250553472 in words is "one hundred five billion, two hundred fifty million, five hundred fifty-three thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 109 128 192 218 327 384 436 654 872 1308 1744 2616 3488 5232 6976 10464 13952 20928 41856 2514587 5029174 7543761 10058348 15087522 20116696 30175044 40233392 60350088 80466784 120700176 160933568 241400352 274089983 321867136 482800704 548179966 822269949 965601408 1096359932 1644539898 2192719864 3289079796 4385439728 6578159592 8770879456 13156319184 17541758912 26312638368 35083517824 52625276736 105250553472