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30102101203 = 151119921973
BaseRepresentation
bin11100000010001110…
…011001110011010011
32212200212102011220011
4130002032121303103
5443122114214303
621455000255351
72113646431666
oct340216316323
985625364804
1030102101203
1111847940199
125a01171557
132ab9593105
141657c256dd
15bb2a9616d
hex702399cd3

30102101203 has 4 divisors (see below), whose sum is σ = 30122024688. Its totient is φ = 30082177720.

The previous prime is 30102101191. The next prime is 30102101219. The reversal of 30102101203 is 30210120103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30210120103 = 283106749541.

It is a cyclic number.

It is not a de Polignac number, because 30102101203 - 25 = 30102101171 is a prime.

It is a super-2 number, since 2×301021012032 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30102101503) 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 3 ways as a sum of consecutive naturals, for example, 9959476 + ... + 9962497.

It is an arithmetic number, because the mean of its divisors is an integer number (7530506172).

Almost surely, 230102101203 is an apocalyptic number.

30102101203 is a deficient number, since it is larger than the sum of its proper divisors (19923485).

30102101203 is a wasteful number, since it uses less digits than its factorization.

30102101203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19923484.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30102101203 its reverse (30210120103), we get a palindrome (60312221306).

The spelling of 30102101203 in words is "thirty billion, one hundred two million, one hundred one thousand, two hundred three".

Divisors: 1 1511 19921973 30102101203