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30675615007 = 191614506053
BaseRepresentation
bin11100100100011010…
…001011110100011111
32221011211120200221011
4130210122023310133
51000310424140012
622031524520051
72134112265622
oct344432136437
987154520834
1030675615007
1112011648644
125b41250027
132b7b3471ab
1416b0075db9
15be80d11a7
hex72468bd1f

30675615007 has 4 divisors (see below), whose sum is σ = 32290121080. Its totient is φ = 29061108936.

The previous prime is 30675614989. The next prime is 30675615011. The reversal of 30675615007 is 70051657603.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30675615007 is a prime.

It is a super-2 number, since 2×306756150072 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30675615077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807253008 + ... + 807253045.

It is an arithmetic number, because the mean of its divisors is an integer number (8072530270).

Almost surely, 230675615007 is an apocalyptic number.

30675615007 is a deficient number, since it is larger than the sum of its proper divisors (1614506073).

30675615007 is a wasteful number, since it uses less digits than its factorization.

30675615007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614506072.

The product of its (nonzero) digits is 132300, while the sum is 40.

The spelling of 30675615007 in words is "thirty billion, six hundred seventy-five million, six hundred fifteen thousand, seven".

Divisors: 1 19 1614506053 30675615007