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106648205 = 521329641
BaseRepresentation
bin1100101101101…
…01001010001101
321102200021211112
412112311022031
5204300220310
614325501405
72433331466
oct626651215
9242607745
10106648205
1155222414
122b871865
1319130861
1410241d6d
159569705
hex65b528d

106648205 has 4 divisors (see below), whose sum is σ = 127977852. Its totient is φ = 85318560.

The previous prime is 106648193. The next prime is 106648231. The reversal of 106648205 is 502846601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502846601 = 4311694107.

It can be written as a sum of positive squares in 2 ways, for example, as 71944324 + 34703881 = 8482^2 + 5891^2 .

It is not a de Polignac number, because 106648205 - 216 = 106582669 is a prime.

It is a super-2 number, since 2×1066482052 = 22747679259444050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10664816 + ... + 10664825.

It is an arithmetic number, because the mean of its divisors is an integer number (31994463).

Almost surely, 2106648205 is an apocalyptic number.

It is an amenable number.

106648205 is a deficient number, since it is larger than the sum of its proper divisors (21329647).

106648205 is an equidigital number, since it uses as much as digits as its factorization.

106648205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21329646.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 106648205 is about 10327.0617796157. The cubic root of 106648205 is about 474.2250781123.

The spelling of 106648205 in words is "one hundred six million, six hundred forty-eight thousand, two hundred five".

Divisors: 1 5 21329641 106648205