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30102131131031 = 179268671910429
BaseRepresentation
bin1101101100000101100101…
…10101010100001010010111
310221120201212021102202220202
412312002302311110022113
512421143131032143111
6144004421135451115
76224543604600551
oct666026265241227
9127521767382822
1030102131131031
119656273298473
123461bb2986a9b
1313a480761956b
14760d4547c4d1
1537305b179b3b
hex1b60b2d54297

30102131131031 has 8 divisors (see below), whose sum is σ = 31872895798320. Its totient is φ = 28331372138368.

The previous prime is 30102131131001. The next prime is 30102131131067. The reversal of 30102131131031 is 13013113120103.

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 30102131131031 - 214 = 30102131114647 is a prime.

It is a super-2 number, since 2×301021311310312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30102131130994 and 30102131131012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102131131001) 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, 14801525 + ... + 16711953.

It is an arithmetic number, because the mean of its divisors is an integer number (3984111974790).

Almost surely, 230102131131031 is an apocalyptic number.

30102131131031 is a deficient number, since it is larger than the sum of its proper divisors (1770764667289).

30102131131031 is a wasteful number, since it uses less digits than its factorization.

30102131131031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837313.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 30102131131031 its reverse (13013113120103), we get a palindrome (43115244251134).

The spelling of 30102131131031 in words is "thirty trillion, one hundred two billion, one hundred thirty-one million, one hundred thirty-one thousand, thirty-one".

Divisors: 1 17 926867 1910429 15756739 32477293 1770713595943 30102131131031