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213541003031 = 715235750707
BaseRepresentation
bin1100011011100000001…
…0010001111100010111
3202102012001001220121012
43012320002101330113
511444312444044111
6242033244442435
721266513401646
oct3067002217427
9672161056535
10213541003031
11826203691a4
123547654941b
13171a18011c5
14a49a63735d
15584c13d48b
hex31b8091f17

213541003031 has 8 divisors (see below), whose sum is σ = 216962711424. Its totient is φ = 210130797240.

The previous prime is 213541003001. The next prime is 213541003069. The reversal of 213541003031 is 130300145312.

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 213541003031 - 26 = 213541002967 is a prime.

It is a super-2 number, since 2×2135410030312 (a number of 23 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 = 213541002988 and 213541003006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213541003001) 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, 2838221 + ... + 2912486.

It is an arithmetic number, because the mean of its divisors is an integer number (27120338928).

Almost surely, 2213541003031 is an apocalyptic number.

213541003031 is a deficient number, since it is larger than the sum of its proper divisors (3421708393).

213541003031 is an equidigital number, since it uses as much as digits as its factorization.

213541003031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751301.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 213541003031 its reverse (130300145312), we get a palindrome (343841148343).

The spelling of 213541003031 in words is "two hundred thirteen billion, five hundred forty-one million, three thousand, thirty-one".

Divisors: 1 71 523 37133 5750707 408300197 3007619761 213541003031