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2131110212 = 227116919189
BaseRepresentation
bin111111100000110…
…0010100101000100
312111112001121121212
41333001202211010
513331031011322
6551245030552
7103545065210
oct17701424504
95445047555
102131110212
119a3a57710
124b5855458
1327c69127a
14163067940
15c71600e2
hex7f062944

2131110212 has 24 divisors (see below), whose sum is σ = 4649695680. Its totient is φ = 830302560.

The previous prime is 2131110209. The next prime is 2131110239. The reversal of 2131110212 is 2120111312.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3459287 + ... + 3459902.

It is an arithmetic number, because the mean of its divisors is an integer number (193737320).

Almost surely, 22131110212 is an apocalyptic number.

2131110212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2131110212 is an abundant number, since it is smaller than the sum of its proper divisors (2518585468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131110212 is a wasteful number, since it uses less digits than its factorization.

2131110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6919211 (or 6919209 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2131110212 is about 46163.9492677999. The cubic root of 2131110212 is about 1286.8718573785.

Adding to 2131110212 its reverse (2120111312), we get a palindrome (4251221524).

The spelling of 2131110212 in words is "two billion, one hundred thirty-one million, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 6919189 13838378 27676756 48434323 76111079 96868646 152222158 193737292 304444316 532777553 1065555106 2131110212