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2011102331 = 7537374257
BaseRepresentation
bin111011111011110…
…1111110001111011
312012011020120202112
41313313233301323
513104320233311
6531320522535
7100560042050
oct16767576173
95164216675
102011102331
1194223aa47
1248162044b
132608638a4
14151149027
15bb85728b
hex77defc7b

2011102331 has 16 divisors (see below), whose sum is σ = 2373879744. Its totient is φ = 1668086784.

The previous prime is 2011102321. The next prime is 2011102349. The reversal of 2011102331 is 1332011102.

It is not a de Polignac number, because 2011102331 - 218 = 2010840187 is a prime.

It is a super-2 number, since 2×20111023312 = 8089065171507267122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011102321) 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, 10046 + ... + 64211.

It is an arithmetic number, because the mean of its divisors is an integer number (148367484).

Almost surely, 22011102331 is an apocalyptic number.

2011102331 is a deficient number, since it is larger than the sum of its proper divisors (362777413).

2011102331 is an equidigital number, since it uses as much as digits as its factorization.

2011102331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74390.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2011102331 is about 44845.3155970610. The cubic root of 2011102331 is about 1262.2480926804.

Adding to 2011102331 its reverse (1332011102), we get a palindrome (3343113433).

The spelling of 2011102331 in words is "two billion, eleven million, one hundred two thousand, three hundred thirty-one".

Divisors: 1 7 53 73 371 511 3869 27083 74257 519799 3935621 5420761 27549347 37945327 287300333 2011102331