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1230423443 = 6719395153
BaseRepresentation
bin100100101010110…
…1100010110010011
310011202020222122122
41021111230112103
510004442022233
6322032124455
742330266234
oct11125542623
93152228578
101230423443
115815a6387
122a409672b
13167bb7112
14b95ad08b
1573049d98
hex4956c593

1230423443 has 8 divisors (see below), whose sum is σ = 1255271568. Its totient is φ = 1205766144.

The previous prime is 1230423427. The next prime is 1230423463. The reversal of 1230423443 is 3443240321.

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 1230423443 - 24 = 1230423427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230423463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34646 + ... + 60507.

It is an arithmetic number, because the mean of its divisors is an integer number (156908946).

Almost surely, 21230423443 is an apocalyptic number.

1230423443 is a deficient number, since it is larger than the sum of its proper divisors (24848125).

1230423443 is an equidigital number, since it uses as much as digits as its factorization.

1230423443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95413.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1230423443 is about 35077.3921921228. The cubic root of 1230423443 is about 1071.5642079705.

Adding to 1230423443 its reverse (3443240321), we get a palindrome (4673663764).

The spelling of 1230423443 in words is "one billion, two hundred thirty million, four hundred twenty-three thousand, four hundred forty-three".

Divisors: 1 67 193 12931 95153 6375251 18364529 1230423443