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106047831 = 339789041
BaseRepresentation
bin1100101001000…
…10100101010111
321101112210021110
412110202211113
5204122012311
614304550103
72425251231
oct624424527
9241483243
10106047831
115495233a
122b622333
1318c804c6
1410127251
15949b8a6
hex6522957

106047831 has 8 divisors (see below), whose sum is σ = 141754864. Its totient is φ = 70519680.

The previous prime is 106047803. The next prime is 106047841. The reversal of 106047831 is 138740601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 106047831 - 27 = 106047703 is a prime.

It is a super-2 number, since 2×1060478312 = 22492284919609122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106047841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43330 + ... + 45711.

It is an arithmetic number, because the mean of its divisors is an integer number (17719358).

Almost surely, 2106047831 is an apocalyptic number.

106047831 is a deficient number, since it is larger than the sum of its proper divisors (35707033).

106047831 is an equidigital number, since it uses as much as digits as its factorization.

106047831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89441.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 106047831 is about 10297.9527577087. The cubic root of 106047831 is about 473.3335227247. Note that the first 3 decimals are identical.

The spelling of 106047831 in words is "one hundred six million, forty-seven thousand, eight hundred thirty-one".

Divisors: 1 3 397 1191 89041 267123 35349277 106047831