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30102311303 = 281107125663
BaseRepresentation
bin11100000010001111…
…001101000110000111
32212200212210212002122
4130002033031012013
5443122142430203
621455005000155
72113651265351
oct340217150607
985625725078
1030102311303
1111847a74029
125a0125305b
132ab963792c
141657c7c0d1
15bb2ad8538
hex7023cd187

30102311303 has 4 divisors (see below), whose sum is σ = 30209437248. Its totient is φ = 29995185360.

The previous prime is 30102311273. The next prime is 30102311321. The reversal of 30102311303 is 30311320103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30102311303 - 28 = 30102311047 is a prime.

It is a super-2 number, since 2×301023113032 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102311333) 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, 53562551 + ... + 53563112.

It is an arithmetic number, because the mean of its divisors is an integer number (7552359312).

Almost surely, 230102311303 is an apocalyptic number.

30102311303 is a deficient number, since it is larger than the sum of its proper divisors (107125945).

30102311303 is a wasteful number, since it uses less digits than its factorization.

30102311303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107125944.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30102311303 its reverse (30311320103), we get a palindrome (60413631406).

The spelling of 30102311303 in words is "thirty billion, one hundred two million, three hundred eleven thousand, three hundred three".

Divisors: 1 281 107125663 30102311303