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106642623 = 3434191973
BaseRepresentation
bin1100101101100…
…11110010111111
321102200000011210
412112303302333
5204300030443
614325415503
72433306303
oct626636277
9242600153
10106642623
11552191aa
122b86a593
131912b159
141023dd03
159567c33
hex65b3cbf

106642623 has 16 divisors (see below), whose sum is σ = 145918080. Its totient is φ = 69240864.

The previous prime is 106642597. The next prime is 106642643. The reversal of 106642623 is 326246601.

It is not a de Polignac number, because 106642623 - 210 = 106641599 is a prime.

It is a super-2 number, since 2×1066426232 = 22745298080640258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106642643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53065 + ... + 55037.

It is an arithmetic number, because the mean of its divisors is an integer number (9119880).

Almost surely, 2106642623 is an apocalyptic number.

106642623 is a deficient number, since it is larger than the sum of its proper divisors (39275457).

106642623 is a wasteful number, since it uses less digits than its factorization.

106642623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 106642623 is about 10326.7915152771. The cubic root of 106642623 is about 474.2168042722.

The spelling of 106642623 in words is "one hundred six million, six hundred forty-two thousand, six hundred twenty-three".

Divisors: 1 3 43 129 419 1257 1973 5919 18017 54051 84839 254517 826687 2480061 35547541 106642623