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30345306 = 2317297503
BaseRepresentation
bin111001111000…
…0100001011010
32010002200221020
41303300201122
530232022211
63002223310
7515634165
oct163604132
963080836
1030345306
1116146972
12a1b4b36
136396204
14405cadc
1529e6306
hex1cf085a

30345306 has 16 divisors (see below), whose sum is σ = 64260864. Its totient is φ = 9520064.

The previous prime is 30345269. The next prime is 30345313. The reversal of 30345306 is 60354303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148650 + ... + 148853.

It is an arithmetic number, because the mean of its divisors is an integer number (4016304).

Almost surely, 230345306 is an apocalyptic number.

30345306 is an abundant number, since it is smaller than the sum of its proper divisors (33915558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30345306 is a wasteful number, since it uses less digits than its factorization.

30345306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297525.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 30345306 is about 5508.6573681797. The cubic root of 30345306 is about 311.9108678659.

Adding to 30345306 its reverse (60354303), we get a palindrome (90699609).

The spelling of 30345306 in words is "thirty million, three hundred forty-five thousand, three hundred six".

Divisors: 1 2 3 6 17 34 51 102 297503 595006 892509 1785018 5057551 10115102 15172653 30345306