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2011112401 = 5367279107
BaseRepresentation
bin111011111011111…
…0010001111010001
312012011021002120111
41313313302033101
513104321044101
6531321041321
7100560113314
oct16767621721
95164232514
102011112401
11942247571
12481626241
1326086834c
1415114c97b
15bb85a251
hex77df23d1

2011112401 has 24 divisors (see below), whose sum is σ = 2126113920. Its totient is φ = 1901176992.

The previous prime is 2011112353. The next prime is 2011112407. The reversal of 2011112401 is 1042111102.

It is not a de Polignac number, because 2011112401 - 27 = 2011112273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011112407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18795390 + ... + 18795496.

It is an arithmetic number, because the mean of its divisors is an integer number (88588080).

Almost surely, 22011112401 is an apocalyptic number.

It is an amenable number.

2011112401 is a deficient number, since it is larger than the sum of its proper divisors (115001519).

2011112401 is an equidigital number, since it uses as much as digits as its factorization.

2011112401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2011112401 is about 44845.4278717463. The cubic root of 2011112401 is about 1262.2501994548.

Adding to 2011112401 its reverse (1042111102), we get a palindrome (3053223503).

The spelling of 2011112401 in words is "two billion, eleven million, one hundred twelve thousand, four hundred one".

Divisors: 1 53 67 79 107 3551 4187 4489 5293 5671 7169 8453 237917 280529 354631 379957 448009 480323 566351 18795443 25457119 30016603 37945517 2011112401