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30442002102 = 2321799483667
BaseRepresentation
bin11100010110011111…
…000001011010110110
32220120112222221021100
4130112133001122312
5444321123031402
621552421430530
72125244514501
oct342637013266
986515887240
1030442002102
1111a01797826
125a96b6b446
132b41b215c5
14168b024138
15bd283771c
hex7167c16b6

30442002102 has 24 divisors (see below), whose sum is σ = 69837534936. Its totient is φ = 9550431936.

The previous prime is 30442002089. The next prime is 30442002109. The reversal of 30442002102 is 20120024403.

30442002102 is a `hidden beast` number, since 30 + 4 + 420 + 0 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442002109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49741528 + ... + 49742139.

It is an arithmetic number, because the mean of its divisors is an integer number (2909897289).

Almost surely, 230442002102 is an apocalyptic number.

30442002102 is an abundant number, since it is smaller than the sum of its proper divisors (39395532834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30442002102 is a wasteful number, since it uses less digits than its factorization.

30442002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99483692 (or 99483689 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 30442002102 its reverse (20120024403), we get a palindrome (50562026505).

The spelling of 30442002102 in words is "thirty billion, four hundred forty-two million, two thousand, one hundred two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 99483667 198967334 298451001 596902002 895353003 1691222339 1790706006 3382444678 5073667017 10147334034 15221001051 30442002102