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12445044054421 = 1113928328760903
BaseRepresentation
bin1011010100011001011001…
…1011100001100110010101
31122001201211111222112011011
42311012112123201212111
53112344422234220141
642245101352412221
72423060536034236
oct265062633414625
948051744875134
1012445044054421
113a68a05a21a60
12148bb240a7071
136c37410c5164
143104b41db08d
15168ace05a881
hexb51966e1995

12445044054421 has 16 divisors (see below), whose sum is σ = 13722402516480. Its totient is φ = 11192592622320.

The previous prime is 12445044054419. The next prime is 12445044054427.

12445044054421 is nontrivially palindromic in base 10.

12445044054421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12445044054421 - 21 = 12445044054419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445044054427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13947745 + ... + 14813158.

It is an arithmetic number, because the mean of its divisors is an integer number (857650157280).

Almost surely, 212445044054421 is an apocalyptic number.

12445044054421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12445044054421 is a deficient number, since it is larger than the sum of its proper divisors (1277358462059).

12445044054421 is a wasteful number, since it uses less digits than its factorization.

12445044054421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28761336.

The product of its (nonzero) digits is 409600, while the sum is 40.

It can be divided in two parts, 1244504 and 4054421, that added together give a palindrome (5298925).

The spelling of 12445044054421 in words is "twelve trillion, four hundred forty-five billion, forty-four million, fifty-four thousand, four hundred twenty-one".

Divisors: 1 11 139 283 1529 3113 39337 432707 28760903 316369933 3997765517 8139335549 43975420687 89532691039 1131367641311 12445044054421