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10666005 = 357101581
BaseRepresentation
bin101000101100…
…000000010101
3202001220000020
4220230000111
510212303010
61020335353
7156442140
oct50540025
922056006
1010666005
116025589
1236a4559
132295a5c
1415b9057
15e0a470
hexa2c015

10666005 has 16 divisors (see below), whose sum is σ = 19503744. Its totient is φ = 4875840.

The previous prime is 10666003. The next prime is 10666031. The reversal of 10666005 is 50066601.

It is not a de Polignac number, because 10666005 - 21 = 10666003 is a prime.

It is a super-2 number, since 2×106660052 = 227527325320050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666001) 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, 50686 + ... + 50895.

It is an arithmetic number, because the mean of its divisors is an integer number (1218984).

Almost surely, 210666005 is an apocalyptic number.

10666005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10666005 is a deficient number, since it is larger than the sum of its proper divisors (8837739).

10666005 is a wasteful number, since it uses less digits than its factorization.

10666005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101596.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 10666005 is about 3265.8850255329. The cubic root of 10666005 is about 220.1239315505.

The spelling of 10666005 in words is "ten million, six hundred sixty-six thousand, five".

Divisors: 1 3 5 7 15 21 35 105 101581 304743 507905 711067 1523715 2133201 3555335 10666005