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100030211031 = 3193156610193
BaseRepresentation
bin101110100101001000…
…0111110001111010111
3100120012021111012222210
41131022100332033113
53114330213223111
6113541522324503
710140561523212
oct1351220761727
9316167435883
10100030211031
11394714a00a3
1217477ab9733
139581b597aa
144bad086779
152906c060a6
hex174a43e3d7

100030211031 has 16 divisors (see below), whose sum is σ = 144922096640. Its totient is φ = 61139007360.

The previous prime is 100030210997. The next prime is 100030211051. The reversal of 100030211031 is 130112030001.

It is not a de Polignac number, because 100030211031 - 29 = 100030210519 is a prime.

It is a super-2 number, since 2×1000302110312 (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 = 100030210998 and 100030211016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100030211051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28303330 + ... + 28306863.

It is an arithmetic number, because the mean of its divisors is an integer number (9057631040).

Almost surely, 2100030211031 is an apocalyptic number.

100030211031 is a deficient number, since it is larger than the sum of its proper divisors (44891885609).

100030211031 is a wasteful number, since it uses less digits than its factorization.

100030211031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56610246.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 100030211031 its reverse (130112030001), we get a palindrome (230142241032).

The spelling of 100030211031 in words is "one hundred billion, thirty million, two hundred eleven thousand, thirty-one".

Divisors: 1 3 19 31 57 93 589 1767 56610193 169830579 1075593667 1754915983 3226781001 5264747949 33343403677 100030211031