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2112142331 = 131226313249
BaseRepresentation
bin111110111100100…
…1011101111111011
312110012100221120202
41331321023233323
513311202023311
6545330312415
7103224625235
oct17571135773
95405327522
102112142331
11994281882
124ab42870b
1327877c880
1416072b255
15c5664e3b
hex7de4bbfb

2112142331 has 8 divisors (see below), whose sum is σ = 2274972000. Its totient is φ = 1949363712.

The previous prime is 2112142303. The next prime is 2112142337. The reversal of 2112142331 is 1332412112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112142331 - 26 = 2112142267 is a prime.

It is a super-2 number, since 2×21121423312 = 8922290452804227122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112142337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152795 + ... + 166043.

It is an arithmetic number, because the mean of its divisors is an integer number (284371500).

Almost surely, 22112142331 is an apocalyptic number.

2112142331 is a deficient number, since it is larger than the sum of its proper divisors (162829669).

2112142331 is a wasteful number, since it uses less digits than its factorization.

2112142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25525.

The product of its digits is 288, while the sum is 20.

The square root of 2112142331 is about 45958.0496866436. The cubic root of 2112142331 is about 1283.0425527883.

Adding to 2112142331 its reverse (1332412112), we get a palindrome (3444554443).

The spelling of 2112142331 in words is "two billion, one hundred twelve million, one hundred forty-two thousand, three hundred thirty-one".

Divisors: 1 13 12263 13249 159419 172237 162472487 2112142331