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30545022013 = 112776820183
BaseRepresentation
bin11100011100101000…
…000000110000111101
32220211201211220000121
4130130220000300331
51000024011201023
622010541454541
72130635255212
oct343450006075
986751756017
1030545022013
1111a54961150
125b05571451
132b5a28182c
14169a99db09
15bdb8d6d5d
hex71ca00c3d

30545022013 has 4 divisors (see below), whose sum is σ = 33321842208. Its totient is φ = 27768201820.

The previous prime is 30545021993. The next prime is 30545022023. The reversal of 30545022013 is 31022054503.

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 30545022013 - 221 = 30542924861 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 (30545022023) 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, 1388410081 + ... + 1388410102.

It is an arithmetic number, because the mean of its divisors is an integer number (8330460552).

Almost surely, 230545022013 is an apocalyptic number.

It is an amenable number.

30545022013 is a deficient number, since it is larger than the sum of its proper divisors (2776820195).

30545022013 is a wasteful number, since it uses less digits than its factorization.

30545022013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776820194.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 30545022013 its reverse (31022054503), we get a palindrome (61567076516).

The spelling of 30545022013 in words is "thirty billion, five hundred forty-five million, twenty-two thousand, thirteen".

Divisors: 1 11 2776820183 30545022013