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105747131 = 715106733
BaseRepresentation
bin1100100110110…
…01001010111011
321100222111210102
412103121022323
5204032402011
614254310015
72422556450
oct623311273
9240874712
10105747131
1154767426
122b4b830b
1318ba6689
1410089827
15943c73b
hex64d92bb

105747131 has 4 divisors (see below), whose sum is σ = 120853872. Its totient is φ = 90640392.

The previous prime is 105747127. The next prime is 105747139. The reversal of 105747131 is 131747501.

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

It is a cyclic number.

It is not a de Polignac number, because 105747131 - 22 = 105747127 is a prime.

It is a super-2 number, since 2×1057471312 = 22364911429462322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105747094 and 105747103.

It is not an unprimeable number, because it can be changed into a prime (105747139) 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, 7553360 + ... + 7553373.

It is an arithmetic number, because the mean of its divisors is an integer number (30213468).

Almost surely, 2105747131 is an apocalyptic number.

105747131 is a deficient number, since it is larger than the sum of its proper divisors (15106741).

105747131 is an equidigital number, since it uses as much as digits as its factorization.

105747131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15106740.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 105747131 is about 10283.3424041019. The cubic root of 105747131 is about 472.8857180918.

The spelling of 105747131 in words is "one hundred five million, seven hundred forty-seven thousand, one hundred thirty-one".

Divisors: 1 7 15106733 105747131