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30478138241 = 193494596311
BaseRepresentation
bin11100011000101000…
…110111101110000001
32220200001222211201212
4130120220313232001
5444404400410431
622000152135505
72126163620615
oct343050675601
986601884655
1030478138241
1111a20129401
125aa7097595
132b49464535
141691b4d345
15bd5ac472b
hex718a37b81

30478138241 has 8 divisors (see below), whose sum is σ = 32174184000. Its totient is φ = 28791285840.

The previous prime is 30478138193. The next prime is 30478138253. The reversal of 30478138241 is 14283187403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30478138241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30478132241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291525 + ... + 2304786.

It is an arithmetic number, because the mean of its divisors is an integer number (4021773000).

Almost surely, 230478138241 is an apocalyptic number.

It is an amenable number.

30478138241 is a deficient number, since it is larger than the sum of its proper divisors (1696045759).

30478138241 is a wasteful number, since it uses less digits than its factorization.

30478138241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596679.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 30478138241 in words is "thirty billion, four hundred seventy-eight million, one hundred thirty-eight thousand, two hundred forty-one".

Divisors: 1 19 349 6631 4596311 87329909 1604112539 30478138241