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1400430023 is a prime number
BaseRepresentation
bin101001101111000…
…1101110111000111
310121121011012211122
41103132031313013
510332002230043
6350544024155
746463313236
oct12336156707
93547135748
101400430023
11659562893
1233100205b
1319419c425
14d3dc4b1d
1582e2c368
hex5378ddc7

1400430023 has 2 divisors, whose sum is σ = 1400430024. Its totient is φ = 1400430022.

The previous prime is 1400430013. The next prime is 1400430037. The reversal of 1400430023 is 3200340041.

It is a weak prime.

It is an emirp because it is prime and its reverse (3200340041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400430023 - 24 = 1400430007 is a prime.

It is a super-2 number, since 2×14004300232 = 3922408498639561058, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1400429983 and 1400430010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400430013) 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 as a sum of consecutive naturals, namely, 700215011 + 700215012.

It is an arithmetic number, because the mean of its divisors is an integer number (700215012).

Almost surely, 21400430023 is an apocalyptic number.

1400430023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400430023 is an equidigital number, since it uses as much as digits as its factorization.

1400430023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1400430023 is about 37422.3198505918. The cubic root of 1400430023 is about 1118.8034689217.

Adding to 1400430023 its reverse (3200340041), we get a palindrome (4600770064).

The spelling of 1400430023 in words is "one billion, four hundred million, four hundred thirty thousand, twenty-three".