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105066689 = 7131154579
BaseRepresentation
bin1100100001100…
…11000011000001
321022200221101212
412100303003001
5203344113224
614231535505
72414023610
oct620630301
9238627355
10105066689
1154342182
122b22a595
13189c8a50
14dd4d877
159355d0e
hex64330c1

105066689 has 8 divisors (see below), whose sum is σ = 129312960. Its totient is φ = 83129616.

The previous prime is 105066683. The next prime is 105066701. The reversal of 105066689 is 986660501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105066689 is a prime.

It is a super-2 number, since 2×1050666892 = 22078018274845442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105066683) 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, 577199 + ... + 577380.

It is an arithmetic number, because the mean of its divisors is an integer number (16164120).

Almost surely, 2105066689 is an apocalyptic number.

It is an amenable number.

105066689 is a deficient number, since it is larger than the sum of its proper divisors (24246271).

105066689 is a wasteful number, since it uses less digits than its factorization.

105066689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154599.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 105066689 is about 10250.2043394266. The cubic root of 105066689 is about 471.8692557171.

The spelling of 105066689 in words is "one hundred five million, sixty-six thousand, six hundred eighty-nine".

Divisors: 1 7 13 91 1154579 8082053 15009527 105066689