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106212565 = 5191118027
BaseRepresentation
bin1100101010010…
…10110011010101
321101212011020201
412111022303111
5204142300230
614312300501
72426535424
oct625126325
9241764221
10106212565
1154a55088
122b6a1731
131900a494
141016b2bb
1594d05ca
hex654acd5

106212565 has 8 divisors (see below), whose sum is σ = 134163360. Its totient is φ = 80497872.

The previous prime is 106212563. The next prime is 106212569. The reversal of 106212565 is 565212601.

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 106212565 - 21 = 106212563 is a prime.

It is a super-2 number, since 2×1062125652 = 22562217927758450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106212563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558919 + ... + 559108.

It is an arithmetic number, because the mean of its divisors is an integer number (16770420).

Almost surely, 2106212565 is an apocalyptic number.

It is an amenable number.

106212565 is a deficient number, since it is larger than the sum of its proper divisors (27950795).

106212565 is a wasteful number, since it uses less digits than its factorization.

106212565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118051.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 106212565 is about 10305.9480398457. The cubic root of 106212565 is about 473.5784869821.

The spelling of 106212565 in words is "one hundred six million, two hundred twelve thousand, five hundred sixty-five".

Divisors: 1 5 19 95 1118027 5590135 21242513 106212565