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106243031245 = 5134139866053
BaseRepresentation
bin110001011110010010…
…1000000000011001101
3101011020021000012010011
41202330211000003031
53220041203444440
6120450220513221
710450541602531
oct1427445000315
9334207005104
10106243031245
114106a46a95a
12187106ab811
13a03204ac80
1451dc253bc1
152b6c37b9ea
hex18bc9400cd

106243031245 has 16 divisors (see below), whose sum is σ = 140647438512. Its totient is φ = 76542819840.

The previous prime is 106243031233. The next prime is 106243031273. The reversal of 106243031245 is 542130342601.

It can be written as a sum of positive squares in 8 ways, for example, as 7534587204 + 98708444041 = 86802^2 + 314179^2 .

It is not a de Polignac number, because 106243031245 - 223 = 106234642637 is a prime.

It is a super-2 number, since 2×1062430312452 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19930362 + ... + 19935691.

It is an arithmetic number, because the mean of its divisors is an integer number (8790464907).

Almost surely, 2106243031245 is an apocalyptic number.

It is an amenable number.

106243031245 is a deficient number, since it is larger than the sum of its proper divisors (34404407267).

106243031245 is a wasteful number, since it uses less digits than its factorization.

106243031245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39866112.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 106243031245 its reverse (542130342601), we get a palindrome (648373373846).

The spelling of 106243031245 in words is "one hundred six billion, two hundred forty-three million, thirty-one thousand, two hundred forty-five".

Divisors: 1 5 13 41 65 205 533 2665 39866053 199330265 518258689 1634508173 2591293445 8172540865 21248606249 106243031245