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2131127276 = 221743372379
BaseRepresentation
bin111111100000110…
…0110101111101100
312111112002111000212
41333001212233230
513331032033101
6551245241552
7103545166025
oct17701465754
95445074025
102131127276
119a3a69513
124b58632b8
1327c698c75
1416306dc4c
15c71651bb
hex7f066bec

2131127276 has 24 divisors (see below), whose sum is σ = 3958027920. Its totient is φ = 1000553472.

The previous prime is 2131127269. The next prime is 2131127279. The reversal of 2131127276 is 6727211312.

It is a super-2 number, since 2×21311272762 = 9083406933022360352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2131127279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6746 + ... + 65633.

It is an arithmetic number, because the mean of its divisors is an integer number (164917830).

Almost surely, 22131127276 is an apocalyptic number.

It is an amenable number.

2131127276 is a deficient number, since it is larger than the sum of its proper divisors (1826900644).

2131127276 is a wasteful number, since it uses less digits than its factorization.

2131127276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72833 (or 72831 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 2131127276 is about 46164.1340869728. The cubic root of 2131127276 is about 1286.8752920707.

Adding to 2131127276 its reverse (6727211312), we get a palindrome (8858338588).

The spelling of 2131127276 in words is "two billion, one hundred thirty-one million, one hundred twenty-seven thousand, two hundred seventy-six".

Divisors: 1 2 4 17 34 68 433 866 1732 7361 14722 29444 72379 144758 289516 1230443 2460886 4921772 31340107 62680214 125360428 532781819 1065563638 2131127276