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30305255007 = 366115282529
BaseRepresentation
bin11100001110010101…
…010111111001011111
32220020000200110112010
4130032111113321133
5444031121130012
621531054442303
72121664263066
oct341625277137
986200613463
1030305255007
11119415876a5
125a59203393
132b1c6b2a71
141676bc91dd
15bc5824c3c
hex70e557e5f

30305255007 has 8 divisors (see below), whose sum is σ = 40468139440. Its totient is φ = 20172936960.

The previous prime is 30305254981. The next prime is 30305255051. The reversal of 30305255007 is 70055250303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30305255007 - 26 = 30305254943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30305255107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7639282 + ... + 7643247.

It is an arithmetic number, because the mean of its divisors is an integer number (5058517430).

Almost surely, 230305255007 is an apocalyptic number.

30305255007 is a deficient number, since it is larger than the sum of its proper divisors (10162884433).

30305255007 is a wasteful number, since it uses less digits than its factorization.

30305255007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15283193.

The product of its (nonzero) digits is 15750, while the sum is 30.

The spelling of 30305255007 in words is "thirty billion, three hundred five million, two hundred fifty-five thousand, seven".

Divisors: 1 3 661 1983 15282529 45847587 10101751669 30305255007