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1230258223 = 3358736629
BaseRepresentation
bin100100101010100…
…0100000000101111
310011201221121000101
41021111010000233
510004421230343
6322024411531
742326010445
oct11125040057
93151847011
101230258223
115814a3237
122a4016ba7
13167b59b5c
14b9568b95
1573015e4d
hex4954402f

1230258223 has 4 divisors (see below), whose sum is σ = 1230328440. Its totient is φ = 1230188008.

The previous prime is 1230258217. The next prime is 1230258241. The reversal of 1230258223 is 3228520321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1230258223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230258191 and 1230258200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230258823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15273 + ... + 51901.

It is an arithmetic number, because the mean of its divisors is an integer number (307582110).

Almost surely, 21230258223 is an apocalyptic number.

1230258223 is a deficient number, since it is larger than the sum of its proper divisors (70217).

1230258223 is an equidigital number, since it uses as much as digits as its factorization.

1230258223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70216.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1230258223 is about 35075.0370349056. The cubic root of 1230258223 is about 1071.5162429753.

Adding to 1230258223 its reverse (3228520321), we get a palindrome (4458778544).

The spelling of 1230258223 in words is "one billion, two hundred thirty million, two hundred fifty-eight thousand, two hundred twenty-three".

Divisors: 1 33587 36629 1230258223