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30504356809 = 231326276383
BaseRepresentation
bin11100011010001100…
…111000101111001001
32220201220022212211221
4130122030320233021
5444433103404214
622002530122041
72126632516603
oct343214705711
986656285757
1030504356809
1111a33a06843
125ab3a20321
132b51a14294
141695416173
15bd8052e24
hex71a338bc9

30504356809 has 4 divisors (see below), whose sum is σ = 31830633216. Its totient is φ = 29178080404.

The previous prime is 30504356807. The next prime is 30504356833. The reversal of 30504356809 is 90865340503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30504356809 - 21 = 30504356807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30504356807) 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, 663138169 + ... + 663138214.

It is an arithmetic number, because the mean of its divisors is an integer number (7957658304).

Almost surely, 230504356809 is an apocalyptic number.

It is an amenable number.

30504356809 is a deficient number, since it is larger than the sum of its proper divisors (1326276407).

30504356809 is a wasteful number, since it uses less digits than its factorization.

30504356809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326276406.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 30504356809 in words is "thirty billion, five hundred four million, three hundred fifty-six thousand, eight hundred nine".

Divisors: 1 23 1326276383 30504356809