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2111212450413 = 331131322710733
BaseRepresentation
bin11110101110001110000…
…100010111001001101101
321110211102000200200122000
4132232032010113021231
5234042230341403123
64253513321442513
7305346545510253
oct36561604271155
97424360620560
102111212450413
117443a6430930
122a1200940439
13124117cc4751
147427cac45d3
1539db676eb43
hex1eb8e11726d

2111212450413 has 32 divisors (see below), whose sum is σ = 3422961828480. Its totient is φ = 1275434709120.

The previous prime is 2111212450411. The next prime is 2111212450439. The reversal of 2111212450413 is 3140542121112.

2111212450413 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 2 + 1 + 245 + 0 + 413 = 666.

It is not a de Polignac number, because 2111212450413 - 21 = 2111212450411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111212450411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11262406 + ... + 11448327.

It is an arithmetic number, because the mean of its divisors is an integer number (106967557140).

Almost surely, 22111212450413 is an apocalyptic number.

It is an amenable number.

2111212450413 is a deficient number, since it is larger than the sum of its proper divisors (1311749378067).

2111212450413 is a wasteful number, since it uses less digits than its factorization.

2111212450413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22711066 (or 22711060 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 2111212450413 its reverse (3140542121112), we get a palindrome (5251754571525).

The spelling of 2111212450413 in words is "two trillion, one hundred eleven billion, two hundred twelve million, four hundred fifty thousand, four hundred thirteen".

Divisors: 1 3 9 11 27 33 99 297 313 939 2817 3443 8451 10329 30987 92961 22710733 68132199 204396597 249818063 613189791 749454189 2248362567 6745087701 7108459429 21325378287 63976134861 78193053719 191928404583 234579161157 703737483471 2111212450413