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1400332331 is a prime number
BaseRepresentation
bin101001101110111…
…0110000000101011
310121120222020211102
41103131312000223
510331441113311
6350541552015
746462425356
oct12335660053
93546866742
101400332331
116594a6452
12330b7560b
13194166b18
14d3d9b29d
1582e0d43b
hex5377602b

1400332331 has 2 divisors, whose sum is σ = 1400332332. Its totient is φ = 1400332330.

The previous prime is 1400332249. The next prime is 1400332333. The reversal of 1400332331 is 1332330041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400332331 - 214 = 1400315947 is a prime.

It is a super-2 number, since 2×14003323312 = 3921861274487787122, which contains 22 as substring.

Together with 1400332333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1400332333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700166165 + 700166166.

It is an arithmetic number, because the mean of its divisors is an integer number (700166166).

Almost surely, 21400332331 is an apocalyptic number.

1400332331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400332331 is an equidigital number, since it uses as much as digits as its factorization.

1400332331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1400332331 is about 37421.0145640120. The cubic root of 1400332331 is about 1118.7774529389. Note that the first 3 decimals are identical.

Adding to 1400332331 its reverse (1332330041), we get a palindrome (2732662372).

The spelling of 1400332331 in words is "one billion, four hundred million, three hundred thirty-two thousand, three hundred thirty-one".