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106234781 = 1393312309
BaseRepresentation
bin1100101010100…
…00001110011101
321101220021201112
412111100032131
5204144003111
614312551405
72426660252
oct625201635
9241807645
10106234781
1154a6a844
122b6b2565
1319017623
1410175429
1594d6e8b
hex655039d

106234781 has 8 divisors (see below), whose sum is σ = 107368800. Its totient is φ = 105106320.

The previous prime is 106234759. The next prime is 106234787. The reversal of 106234781 is 187432601.

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

It is a cyclic number.

It is not a de Polignac number, because 106234781 - 226 = 39125917 is a prime.

It is a super-2 number, since 2×1062347812 = 22571657388235922, 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 (106234787) 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, 44855 + ... + 47163.

It is an arithmetic number, because the mean of its divisors is an integer number (13421100).

Almost surely, 2106234781 is an apocalyptic number.

It is an amenable number.

106234781 is a deficient number, since it is larger than the sum of its proper divisors (1134019).

106234781 is a wasteful number, since it uses less digits than its factorization.

106234781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 106234781 is about 10307.0258076712. The cubic root of 106234781 is about 473.6115034342.

The spelling of 106234781 in words is "one hundred six million, two hundred thirty-four thousand, seven hundred eighty-one".

Divisors: 1 139 331 2309 46009 320951 764279 106234781