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30300730905 = 356757752253
BaseRepresentation
bin11100001110000100…
…000111011000011001
32220012201011121121210
4130032010013120121
5444023441342110
621530413453333
72121610651224
oct341604073031
986181147553
1030300730905
1111939a77675
125a577a1249
132b1b78a793
14167636c5bb
15bc522e520
hex70e107619

30300730905 has 32 divisors (see below), whose sum is σ = 49290989184. Its totient is φ = 15891296256.

The previous prime is 30300730903. The next prime is 30300730931. The reversal of 30300730905 is 50903700303.

It is not a de Polignac number, because 30300730905 - 21 = 30300730903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30300730903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553759 + ... + 606011.

It is an arithmetic number, because the mean of its divisors is an integer number (1540343412).

Almost surely, 230300730905 is an apocalyptic number.

It is an amenable number.

30300730905 is a deficient number, since it is larger than the sum of its proper divisors (18990258279).

30300730905 is a wasteful number, since it uses less digits than its factorization.

30300730905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52905.

The product of its (nonzero) digits is 8505, while the sum is 30.

The spelling of 30300730905 in words is "thirty billion, three hundred million, seven hundred thirty thousand, nine hundred five".

Divisors: 1 3 5 15 67 201 335 577 1005 1731 2885 8655 38659 52253 115977 156759 193295 261265 579885 783795 3500951 10502853 17504755 30149981 52514265 90449943 150749905 452249715 2020048727 6060146181 10100243635 30300730905