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106831061 = 891200349
BaseRepresentation
bin1100101111000…
…01110011010101
321110000120122222
412113201303111
5204322043221
614333432125
72435022551
oct627416325
9243016588
10106831061
1155337837
122b93b645
1319195b5c
141028c861
1595a39ab
hex65e1cd5

106831061 has 4 divisors (see below), whose sum is σ = 108031500. Its totient is φ = 105630624.

The previous prime is 106831057. The next prime is 106831163. The reversal of 106831061 is 160138601.

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 37442161 + 69388900 = 6119^2 + 8330^2 .

It is a cyclic number.

It is not a de Polignac number, because 106831061 - 22 = 106831057 is a prime.

It is a super-2 number, since 2×1068310612 = 22825751188771442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106831061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106831001) 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, 600086 + ... + 600263.

It is an arithmetic number, because the mean of its divisors is an integer number (27007875).

Almost surely, 2106831061 is an apocalyptic number.

It is an amenable number.

106831061 is a deficient number, since it is larger than the sum of its proper divisors (1200439).

106831061 is an equidigital number, since it uses as much as digits as its factorization.

106831061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200438.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 106831061 is about 10335.9112322040. The cubic root of 106831061 is about 474.4959543338.

Adding to 106831061 its reverse (160138601), we get a palindrome (266969662).

The spelling of 106831061 in words is "one hundred six million, eight hundred thirty-one thousand, sixty-one".

Divisors: 1 89 1200349 106831061