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30305302807 = 1317413344587
BaseRepresentation
bin11100001110010101…
…100011100100010111
32220020000202220002111
4130032111203210113
5444031124142212
621531055451451
72121664552333
oct341625434427
986200686074
1030305302807
111194160a5aa
125a59226b87
132b1c6cb750
141676bdc7c3
15bc5833ea7
hex70e563917

30305302807 has 16 divisors (see below), whose sum is σ = 35399119392. Its totient is φ = 25686420480.

The previous prime is 30305302801. The next prime is 30305302813. The reversal of 30305302807 is 70820350303.

It is an interprime number because it is at equal distance from previous prime (30305302801) and next prime (30305302813).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30305302807 is a prime.

It is a super-2 number, since 2×303053028072 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30305302801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1663233 + ... + 1681354.

It is an arithmetic number, because the mean of its divisors is an integer number (2212444962).

Almost surely, 230305302807 is an apocalyptic number.

30305302807 is a deficient number, since it is larger than the sum of its proper divisors (5093816585).

30305302807 is a wasteful number, since it uses less digits than its factorization.

30305302807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344658.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 30305302807 in words is "thirty billion, three hundred five million, three hundred two thousand, eight hundred seven".

Divisors: 1 13 17 41 221 533 697 9061 3344587 43479631 56857979 137128067 739153727 1782664871 2331177139 30305302807