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230305215207 = 353832210257
BaseRepresentation
bin1101011001111101000…
…0101011001011100111
3211000110100220010102110
43112133100223023213
512233131113341312
6253444544012103
722432115013054
oct3263720531347
9730410803373
10230305215207
1189743320a01
1238774901033
13189439b9a92
14b20ac9a02b
155ecdc8c43c
hex359f42b2e7

230305215207 has 24 divisors (see below), whose sum is σ = 316683871344. Its totient is φ = 148824242944.

The previous prime is 230305215199. The next prime is 230305215233. The reversal of 230305215207 is 702512503032.

It is a happy number.

It is not a de Polignac number, because 230305215207 - 23 = 230305215199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230305215307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 990223 + ... + 1200479.

It is an arithmetic number, because the mean of its divisors is an integer number (13195161306).

Almost surely, 2230305215207 is an apocalyptic number.

230305215207 is a deficient number, since it is larger than the sum of its proper divisors (86378656137).

230305215207 is an equidigital number, since it uses as much as digits as its factorization.

230305215207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210479 (or 210396 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

Adding to 230305215207 its reverse (702512503032), we get a palindrome (932817718239).

The spelling of 230305215207 in words is "two hundred thirty billion, three hundred five million, two hundred fifteen thousand, two hundred seven".

Divisors: 1 3 53 83 159 249 4399 6889 13197 20667 210257 365117 630771 1095351 11143621 17451331 33430863 52353993 924920543 1448460473 2774761629 4345381419 76768405069 230305215207