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30274781641 = 132838229079
BaseRepresentation
bin11100001100100001…
…001000000111001001
32220010220100020220221
4130030201020013021
5444000321003031
621524045350041
72121144253336
oct341441100711
986126306827
1030274781641
11119263635a5
125a4ab68321
132b162a34a0
141672b3598d
15bc2d05a11
hex70c8481c9

30274781641 has 8 divisors (see below), whose sum is σ = 32718822080. Its totient is φ = 27847199952.

The previous prime is 30274781633. The next prime is 30274781683. The reversal of 30274781641 is 14618747203.

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

It is not a de Polignac number, because 30274781641 - 23 = 30274781633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30274784641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4110861 + ... + 4118218.

It is an arithmetic number, because the mean of its divisors is an integer number (4089852760).

Almost surely, 230274781641 is an apocalyptic number.

It is an amenable number.

30274781641 is a deficient number, since it is larger than the sum of its proper divisors (2444040439).

30274781641 is a wasteful number, since it uses less digits than its factorization.

30274781641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8229375.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 30274781641 in words is "thirty billion, two hundred seventy-four million, seven hundred eighty-one thousand, six hundred forty-one".

Divisors: 1 13 283 3679 8229079 106978027 2328829357 30274781641