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1230105214 = 213431100273
BaseRepresentation
bin100100101010001…
…1110101001111110
310011201122211010101
41021110132221332
510004401331324
6322021231314
742324502402
oct11124365176
93151584111
101230105214
115813a9288
122a3b6253a
13167b05310
14b9529102
1572ed5944
hex4951ea7e

1230105214 has 16 divisors (see below), whose sum is σ = 2033306352. Its totient is φ = 554537088.

The previous prime is 1230105187. The next prime is 1230105259. The reversal of 1230105214 is 4125010321.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1230105191 and 1230105200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549019 + ... + 551254.

It is an arithmetic number, because the mean of its divisors is an integer number (127081647).

Almost surely, 21230105214 is an apocalyptic number.

1230105214 is a deficient number, since it is larger than the sum of its proper divisors (803201138).

1230105214 is a wasteful number, since it uses less digits than its factorization.

1230105214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100331.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1230105214 is about 35072.8558004620. The cubic root of 1230105214 is about 1071.4718191237.

Adding to 1230105214 its reverse (4125010321), we get a palindrome (5355115535).

The spelling of 1230105214 in words is "one billion, two hundred thirty million, one hundred five thousand, two hundred fourteen".

Divisors: 1 2 13 26 43 86 559 1118 1100273 2200546 14303549 28607098 47311739 94623478 615052607 1230105214