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30503000507 = 74357571501
BaseRepresentation
bin11100011010000111…
…101101100110111011
32220201210202222100112
4130122013231212323
5444432232004012
622002441054535
72126615140430
oct343207554673
986653688315
1030503000507
1111a3316a831
125ab348744b
132b5165ab35
141695181b87
15bd7d86122
hex71a1ed9bb

30503000507 has 4 divisors (see below), whose sum is σ = 34860572016. Its totient is φ = 26145429000.

The previous prime is 30503000471. The next prime is 30503000509. The reversal of 30503000507 is 70500030503.

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

It is a cyclic number.

It is not a de Polignac number, because 30503000507 - 222 = 30498806203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30503000509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178785744 + ... + 2178785757.

It is an arithmetic number, because the mean of its divisors is an integer number (8715143004).

Almost surely, 230503000507 is an apocalyptic number.

30503000507 is a deficient number, since it is larger than the sum of its proper divisors (4357571509).

30503000507 is an equidigital number, since it uses as much as digits as its factorization.

30503000507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357571508.

The product of its (nonzero) digits is 1575, while the sum is 23.

The spelling of 30503000507 in words is "thirty billion, five hundred three million, five hundred seven", and thus it is an aban number.

Divisors: 1 7 4357571501 30503000507