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2117469 = 31741519
BaseRepresentation
bin1000000100111101011101
310222120121210
420010331131
51020224334
6113215033
723666244
oct10047535
93876553
102117469
111216982
12861479
13591a53
143d195b
152bc5e9
hex204f5d

2117469 has 8 divisors (see below), whose sum is σ = 2989440. Its totient is φ = 1328576.

The previous prime is 2117461. The next prime is 2117477. The reversal of 2117469 is 9647112.

It is a happy number.

2117469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2117461) and next prime (2117477).

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 2117469 - 23 = 2117461 is a prime.

It is a super-2 number, since 2×21174692 = 8967349931922, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117461) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20709 + ... + 20810.

It is an arithmetic number, because the mean of its divisors is an integer number (373680).

22117469 is an apocalyptic number.

It is an amenable number.

2117469 is a deficient number, since it is larger than the sum of its proper divisors (871971).

2117469 is a wasteful number, since it uses less digits than its factorization.

2117469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41539.

The product of its digits is 3024, while the sum is 30.

The square root of 2117469 is about 1455.1525693205. The cubic root of 2117469 is about 128.4120227288.

The spelling of 2117469 in words is "two million, one hundred seventeen thousand, four hundred sixty-nine".

Divisors: 1 3 17 51 41519 124557 705823 2117469