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30121120102 = 2117112861281
BaseRepresentation
bin11100000011010110…
…111101000101100110
32212202012012102220211
4130003112331011212
5443142001320402
621500520050034
72114300203453
oct340326750546
985665172824
1030121120102
1111857650397
125a0760391a
132ac04c1ab8
14165a57682a
15bb45a14d7
hex7035bd166

30121120102 has 8 divisors (see below), whose sum is σ = 45220267512. Its totient is φ = 15047697600.

The previous prime is 30121120097. The next prime is 30121120103. The reversal of 30121120102 is 20102112103.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121120103) 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, 6428299 + ... + 6432982.

It is an arithmetic number, because the mean of its divisors is an integer number (5652533439).

Almost surely, 230121120102 is an apocalyptic number.

30121120102 is a deficient number, since it is larger than the sum of its proper divisors (15099147410).

30121120102 is a wasteful number, since it uses less digits than its factorization.

30121120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12862454.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30121120102 its reverse (20102112103), we get a palindrome (50223232205).

The spelling of 30121120102 in words is "thirty billion, one hundred twenty-one million, one hundred twenty thousand, one hundred two".

Divisors: 1 2 1171 2342 12861281 25722562 15060560051 30121120102