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30102003131213 = 1319311997609857
BaseRepresentation
bin1101101100000101010110…
…01101000010001101001101
310221120201112100120201011202
412312002223031002031031
512421142400300144323
6144004400324155245
76224540461610336
oct666025315021515
9127521470521152
1030102003131213
1196562080122a2
123461b77b38b25
1313a47b6c51320
14760d3247d28d
1537304ece3d28
hex1b60ab34234d

30102003131213 has 8 divisors (see below), whose sum is σ = 32585508374328. Its totient is φ = 27642493108224.

The previous prime is 30102003131191. The next prime is 30102003131237. The reversal of 30102003131213 is 31213130020103.

It can be written as a sum of positive squares in 4 ways, for example, as 5590661633764 + 24511341497449 = 2364458^2 + 4950893^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30102003131213 - 232 = 30097708163917 is a prime.

It is a super-2 number, since 2×301020031312132 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102003131293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5998802420 + ... + 5998807437.

It is an arithmetic number, because the mean of its divisors is an integer number (4073188546791).

Almost surely, 230102003131213 is an apocalyptic number.

It is an amenable number.

30102003131213 is a deficient number, since it is larger than the sum of its proper divisors (2483505243115).

30102003131213 is a wasteful number, since it uses less digits than its factorization.

30102003131213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11997610063.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30102003131213 its reverse (31213130020103), we get a palindrome (61315133151316).

The spelling of 30102003131213 in words is "thirty trillion, one hundred two billion, three million, one hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 13 193 2509 11997609857 155968928141 2315538702401 30102003131213