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11621115297793 = 2910923318018761
BaseRepresentation
bin1010100100011100000001…
…1100110000000000000001
31112010222010111200000000001
42221013000130300000001
53010400021004012133
640414400000000001
72306412033124321
oct251070034600001
945128114600001
1011621115297793
11378053a695241
121378300000001
13663b35834bc1
142c2671ca3281
1515245a14b87d
hexa91c0730001

11621115297793 has 32 divisors (see below), whose sum is σ = 12192361552800. Its totient is φ = 11062324224000.

The previous prime is 11621115297767. The next prime is 11621115297817. The reversal of 11621115297793 is 39779251112611.

It can be written as a sum of positive squares in 16 ways, for example, as 7077025831824 + 4544089465969 = 2660268^2 + 2131687^2 .

It is not a de Polignac number, because 11621115297793 - 25 = 11621115297761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621115297893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1326455533 + ... + 1326464293.

It is an arithmetic number, because the mean of its divisors is an integer number (381011298525).

Almost surely, 211621115297793 is an apocalyptic number.

It is an amenable number.

11621115297793 is a deficient number, since it is larger than the sum of its proper divisors (571246255007).

11621115297793 is a wasteful number, since it uses less digits than its factorization.

11621115297793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10933.

The product of its digits is 1428840, while the sum is 55.

The spelling of 11621115297793 in words is "eleven trillion, six hundred twenty-one billion, one hundred fifteen million, two hundred ninety-seven thousand, seven hundred ninety-three".

Divisors: 1 29 109 233 1801 3161 6757 8761 25397 52229 196309 254069 419633 736513 954949 2041313 5692961 12169357 15778561 27693521 45739997 59198077 222503117 457578269 1326459913 1719863149 3676404713 6452590393 49876031321 106615736677 400728113717 11621115297793