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30447013121 = 741903103801
BaseRepresentation
bin11100010110110010…
…001000110100000001
32220120220102112002122
4130112302020310001
5444323413404441
621553121054025
72125335225050
oct342662106401
986526375078
1030447013121
1111a045aa668
125a98787315
132b42b873c5
14168b96a397
15bd2ec734b
hex716c88d01

30447013121 has 8 divisors (see below), whose sum is σ = 34797752064. Its totient is φ = 26096565600.

The previous prime is 30447013111. The next prime is 30447013123. The reversal of 30447013121 is 12131074403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30447013121 - 226 = 30379904257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30447013123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241421 + ... + 345221.

It is an arithmetic number, because the mean of its divisors is an integer number (4349719008).

Almost surely, 230447013121 is an apocalyptic number.

It is an amenable number.

30447013121 is a deficient number, since it is larger than the sum of its proper divisors (4350738943).

30447013121 is a wasteful number, since it uses less digits than its factorization.

30447013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145711.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 30447013121 its reverse (12131074403), we get a palindrome (42578087524).

The spelling of 30447013121 in words is "thirty billion, four hundred forty-seven million, thirteen thousand, one hundred twenty-one".

Divisors: 1 7 41903 103801 293321 726607 4349573303 30447013121