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22070605 = 531142391
BaseRepresentation
bin101010000110…
…0010101001101
31112112022011211
41110030111031
521122224410
62105014421
7355411534
oct124142515
945468154
1022070605
1111504a77
127484411
134759a3b
142d0731b
151e0e68a
hex150c54d

22070605 has 8 divisors (see below), whose sum is σ = 27339264. Its totient is φ = 17086800.

The previous prime is 22070603. The next prime is 22070627. The reversal of 22070605 is 50607022.

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

It is not a de Polignac number, because 22070605 - 21 = 22070603 is a prime.

It is a super-2 number, since 2×220706052 = 974223210132050, 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 (22070603) 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, 71041 + ... + 71350.

It is an arithmetic number, because the mean of its divisors is an integer number (3417408).

Almost surely, 222070605 is an apocalyptic number.

It is an amenable number.

22070605 is a deficient number, since it is larger than the sum of its proper divisors (5268659).

22070605 is a wasteful number, since it uses less digits than its factorization.

22070605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142427.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 22070605 is about 4697.9362490353. The cubic root of 22070605 is about 280.5033674925.

Adding to 22070605 its reverse (50607022), we get a palindrome (72677627).

The spelling of 22070605 in words is "twenty-two million, seventy thousand, six hundred five".

Divisors: 1 5 31 155 142391 711955 4414121 22070605