Search a number
-
+
106890389 = 433117993
BaseRepresentation
bin1100101111100…
…00010010010101
321110010121001022
412113300102111
5204330443024
614335010525
72435360534
oct627602225
9243117038
10106890389
1155378371
122b969a45
13191b6b68
14102a631b
1595b635e
hex65f0495

106890389 has 8 divisors (see below), whose sum is σ = 109741632. Its totient is φ = 104055840.

The previous prime is 106890383. The next prime is 106890401. The reversal of 106890389 is 983098601.

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 106890389 - 224 = 90113173 is a prime.

It is a super-2 number, since 2×1068903892 = 22851110521142642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106890383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9377 + ... + 17369.

It is an arithmetic number, because the mean of its divisors is an integer number (13717704).

Almost surely, 2106890389 is an apocalyptic number.

It is an amenable number.

106890389 is a deficient number, since it is larger than the sum of its proper divisors (2851243).

106890389 is an equidigital number, since it uses as much as digits as its factorization.

106890389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8347.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 106890389 is about 10338.7808275444. The cubic root of 106890389 is about 474.5837742561.

The spelling of 106890389 in words is "one hundred six million, eight hundred ninety thousand, three hundred eighty-nine".

Divisors: 1 43 311 7993 13373 343699 2485823 106890389