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11552012211245 = 5118315193166561
BaseRepresentation
bin1010100000011010100110…
…0101011001010000101101
31111220100202121000111002012
42220012221211121100231
53003232010111224440
640322530545011005
72301414426436562
oct250065145312055
944810677014065
1011552012211245
1137541a9807560
121366a35623a65
1365a47217308c
142bd198442869
15150763657e65
hexa81a995942d

11552012211245 has 32 divisors (see below), whose sum is σ = 15305933833344. Its totient is φ = 8299644825600.

The previous prime is 11552012211209. The next prime is 11552012211263. The reversal of 11552012211245 is 54211221025511.

It is not a de Polignac number, because 11552012211245 - 28 = 11552012210989 is a prime.

It is a super-2 number, since 2×115520122112452 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69272765 + ... + 69439325.

It is an arithmetic number, because the mean of its divisors is an integer number (478310432292).

Almost surely, 211552012211245 is an apocalyptic number.

It is an amenable number.

11552012211245 is a deficient number, since it is larger than the sum of its proper divisors (3753921622099).

11552012211245 is a wasteful number, since it uses less digits than its factorization.

11552012211245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181853.

The product of its (nonzero) digits is 8000, while the sum is 32.

Adding to 11552012211245 its reverse (54211221025511), we get a palindrome (65763233236756).

The spelling of 11552012211245 in words is "eleven trillion, five hundred fifty-two billion, twelve million, two hundred eleven thousand, two hundred forty-five".

Divisors: 1 5 11 55 83 415 913 4565 15193 75965 166561 167123 832805 835615 1261019 1832171 6305095 9160855 13824563 13871209 69122815 69356045 152070193 760350965 2530561273 12652806365 27836174003 139180870015 210036585659 1050182928295 2310402442249 11552012211245