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306000427 = 437116289
BaseRepresentation
bin10010001111010…
…011001000101011
3210022210102200011
4102033103020223
51111314003202
650210352351
710403650345
oct2217231053
9708712604
10306000427
11147802717
128658b6b7
134b51c055
142c8d6295
151bce6bd7
hex123d322b

306000427 has 4 divisors (see below), whose sum is σ = 313116760. Its totient is φ = 298884096.

The previous prime is 306000413. The next prime is 306000433. The reversal of 306000427 is 724000603.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 306000427 - 211 = 305998379 is a prime.

It is a super-2 number, since 2×3060004272 = 187272522648364658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306000398 and 306000407.

It is not an unprimeable number, because it can be changed into a prime (306000437) 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, 3558102 + ... + 3558187.

It is an arithmetic number, because the mean of its divisors is an integer number (78279190).

Almost surely, 2306000427 is an apocalyptic number.

306000427 is a deficient number, since it is larger than the sum of its proper divisors (7116333).

306000427 is an equidigital number, since it uses as much as digits as its factorization.

306000427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116332.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 306000427 is about 17492.8678895143. The cubic root of 306000427 is about 673.8667235237.

The spelling of 306000427 in words is "three hundred six million, four hundred twenty-seven", and thus it is an aban number.

Divisors: 1 43 7116289 306000427