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30470153801 = 215314152417
BaseRepresentation
bin11100011000001010…
…011010011001001001
32220122111222012010212
4130120022122121021
5444400324410201
621555305050505
72126036014433
oct343012323111
986574865125
1030470153801
1111a1667559a
125aa4486a35
132b478ca209
141690a71653
15bd5048abb
hex71829a649

30470153801 has 4 divisors (see below), whose sum is σ = 30484308372. Its totient is φ = 30455999232.

The previous prime is 30470153783. The next prime is 30470153843. The reversal of 30470153801 is 10835107403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10835107403 = 17637359259.

It can be written as a sum of positive squares in 2 ways, for example, as 11405172025 + 19064981776 = 106795^2 + 138076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30470153801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30470153401) 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, 7074056 + ... + 7078361.

It is an arithmetic number, because the mean of its divisors is an integer number (7621077093).

Almost surely, 230470153801 is an apocalyptic number.

It is an amenable number.

30470153801 is a deficient number, since it is larger than the sum of its proper divisors (14154571).

30470153801 is a wasteful number, since it uses less digits than its factorization.

30470153801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14154570.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 30470153801 in words is "thirty billion, four hundred seventy million, one hundred fifty-three thousand, eight hundred one".

Divisors: 1 2153 14152417 30470153801