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101705705 = 520341141
BaseRepresentation
bin1100000111111…
…10011111101001
321002101011222222
412003332133221
5202014040310
614031523425
72343325043
oct603763751
9232334888
10101705705
1152457002
122a089575
13180bccba
14d716a93
158de0055
hex60fe7e9

101705705 has 4 divisors (see below), whose sum is σ = 122046852. Its totient is φ = 81364560.

The previous prime is 101705683. The next prime is 101705719. The reversal of 101705705 is 507507101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15085456 + 86620249 = 3884^2 + 9307^2 .

It is not a de Polignac number, because 101705705 - 220 = 100657129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10170566 + ... + 10170575.

It is an arithmetic number, because the mean of its divisors is an integer number (30511713).

Almost surely, 2101705705 is an apocalyptic number.

It is an amenable number.

101705705 is a deficient number, since it is larger than the sum of its proper divisors (20341147).

101705705 is an equidigital number, since it uses as much as digits as its factorization.

101705705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20341146.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 101705705 is about 10084.9246402737. The cubic root of 101705705 is about 466.7830795178.

The spelling of 101705705 in words is "one hundred one million, seven hundred five thousand, seven hundred five".

Divisors: 1 5 20341141 101705705