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306230123 = 3134492179
BaseRepresentation
bin10010010000001…
…011001101101011
3210100020002202102
4102100023031223
51111343330443
650215324015
710405625123
oct2220131553
9710202672
10306230123
1114794a251
128668060b
134b59c774
142c955c83
151bd3ecb8
hex1240b36b

306230123 has 8 divisors (see below), whose sum is σ = 308034000. Its totient is φ = 304432128.

The previous prime is 306230117. The next prime is 306230137. The reversal of 306230123 is 321032603.

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 306230123 - 28 = 306229867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306230095 and 306230104.

It is not an unprimeable number, because it can be changed into a prime (306230143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139448 + ... + 141626.

It is an arithmetic number, because the mean of its divisors is an integer number (38504250).

Almost surely, 2306230123 is an apocalyptic number.

306230123 is a deficient number, since it is larger than the sum of its proper divisors (1803877).

306230123 is a wasteful number, since it uses less digits than its factorization.

306230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 306230123 is about 17499.4320764989. The cubic root of 306230123 is about 674.0352916740.

Adding to 306230123 its reverse (321032603), we get a palindrome (627262726).

The spelling of 306230123 in words is "three hundred six million, two hundred thirty thousand, one hundred twenty-three".

Divisors: 1 313 449 2179 140537 682027 978371 306230123