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10820018 = 211491819
BaseRepresentation
bin101001010001…
…100110110010
3202100201021102
4221101212302
510232220033
61023524402
7160653146
oct51214662
922321242
1010820018
116120270
123759702
13231aba1
141619226
15e3ade8
hexa519b2

10820018 has 8 divisors (see below), whose sum is σ = 17705520. Its totient is φ = 4918180.

The previous prime is 10820009. The next prime is 10820027. The reversal of 10820018 is 81002801.

It is an interprime number because it is at equal distance from previous prime (10820009) and next prime (10820027).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245888 + ... + 245931.

It is an arithmetic number, because the mean of its divisors is an integer number (2213190).

Almost surely, 210820018 is an apocalyptic number.

10820018 is a deficient number, since it is larger than the sum of its proper divisors (6885502).

10820018 is a wasteful number, since it uses less digits than its factorization.

10820018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491832.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 10820018 is about 3289.3795767591. The cubic root of 10820018 is about 221.1783740400.

Adding to 10820018 its reverse (81002801), we get a palindrome (91822819).

It can be divided in two parts, 10 and 820018, that added together give a palindrome (820028).

The spelling of 10820018 in words is "ten million, eight hundred twenty thousand, eighteen".

Divisors: 1 2 11 22 491819 983638 5410009 10820018