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30020002131001 = 293102457345157
BaseRepresentation
bin1101101001101100100111…
…00100000010110000111001
310221021212212120020021220211
412310312103210002300321
512413321431021143001
6143502555410151121
76215605431610021
oct664662344026071
9127255776207824
1030020002131001
119624458646133
12344a0b1b824a1
131399b493b1b1c
1475ad93a68a81
15370d50d16351
hex1b4d93902c39

30020002131001 has 4 divisors (see below), whose sum is σ = 30122459476452. Its totient is φ = 29917544785552.

The previous prime is 30020002130999. The next prime is 30020002131023. The reversal of 30020002131001 is 10013120002003.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14165430162601 + 15854571968400 = 3763699^2 + 3981780^2 .

It is a cyclic number.

It is not a de Polignac number, because 30020002131001 - 21 = 30020002130999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30020002141001) 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, 51228672286 + ... + 51228672871.

It is an arithmetic number, because the mean of its divisors is an integer number (7530614869113).

Almost surely, 230020002131001 is an apocalyptic number.

It is an amenable number.

30020002131001 is a deficient number, since it is larger than the sum of its proper divisors (102457345451).

30020002131001 is a wasteful number, since it uses less digits than its factorization.

30020002131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102457345450.

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

Adding to 30020002131001 its reverse (10013120002003), we get a palindrome (40033122133004).

The spelling of 30020002131001 in words is "thirty trillion, twenty billion, two million, one hundred thirty-one thousand, one".

Divisors: 1 293 102457345157 30020002131001