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30421334113 = 50815987273
BaseRepresentation
bin11100010101010000…
…001011100001100001
32220112010002220010021
4130111100023201201
5444300330142423
621550402433441
72124604034122
oct342520134141
986463086107
1030421334113
11119a1060645
125a90062881
132b3a766121
1416883a4049
15bd0b0395d
hex71540b861

30421334113 has 4 divisors (see below), whose sum is σ = 30427326468. Its totient is φ = 30415341760.

The previous prime is 30421334039. The next prime is 30421334143. The reversal of 30421334113 is 31143312403.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12275088849 + 18146245264 = 110793^2 + 134708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30421334113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30421334143) 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, 2988556 + ... + 2998717.

It is an arithmetic number, because the mean of its divisors is an integer number (7606831617).

Almost surely, 230421334113 is an apocalyptic number.

It is an amenable number.

30421334113 is a deficient number, since it is larger than the sum of its proper divisors (5992355).

30421334113 is an equidigital number, since it uses as much as digits as its factorization.

30421334113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5992354.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 30421334113 its reverse (31143312403), we get a palindrome (61564646516).

The spelling of 30421334113 in words is "thirty billion, four hundred twenty-one million, three hundred thirty-four thousand, one hundred thirteen".

Divisors: 1 5081 5987273 30421334113