Search a number
-
+
230100121205 = 51931308325343
BaseRepresentation
bin1101011001001100001…
…0010011011001110101
3210222221001222021100022
43112103002103121311
512232221112334310
6253412340054525
722424044521263
oct3262302233165
9728831867308
10230100121205
1189648579829
1238718094445
131891036ac96
14b1cb94d433
155ebac78a55
hex3593093675

230100121205 has 32 divisors (see below), whose sum is σ = 300137840640. Its totient is φ = 168704735040.

The previous prime is 230100121061. The next prime is 230100121217. The reversal of 230100121205 is 502121001032.

It is a happy number.

230100121205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 230100121205 - 210 = 230100120181 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 9066764 + ... + 9092106.

It is an arithmetic number, because the mean of its divisors is an integer number (9379307520).

Almost surely, 2230100121205 is an apocalyptic number.

It is an amenable number.

230100121205 is a deficient number, since it is larger than the sum of its proper divisors (70037719435).

230100121205 is a wasteful number, since it uses less digits than its factorization.

230100121205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28481.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 230100121205 its reverse (502121001032), we get a palindrome (732221122237).

The spelling of 230100121205 in words is "two hundred thirty billion, one hundred million, one hundred twenty-one thousand, two hundred five".

Divisors: 1 5 19 31 95 155 589 2945 3083 15415 25343 58577 95573 126715 292885 477865 481517 785633 1815887 2407585 3928165 9079435 14927027 74635135 78132469 390662345 1484516911 2422106539 7422584555 12110532695 46020024241 230100121205