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20770034 = 217360029
BaseRepresentation
bin100111100111…
…0110011110010
31110002020010112
41033032303302
520304120114
62021101322
7341354015
oct117166362
943066115
1020770034
11107a691a
126b57842
1343c2a7c
142a8937c
151c5413e
hex13cecf2

20770034 has 8 divisors (see below), whose sum is σ = 31335660. Its totient is φ = 10324816.

The previous prime is 20769967. The next prime is 20770049. The reversal of 20770034 is 43007702.

It can be written as a sum of positive squares in 2 ways, for example, as 13667809 + 7102225 = 3697^2 + 2665^2 .

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

It is a super-2 number, since 2×207700342 = 862788624722312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20769991 and 20770009.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29669 + ... + 30360.

Almost surely, 220770034 is an apocalyptic number.

20770034 is a deficient number, since it is larger than the sum of its proper divisors (10565626).

20770034 is a wasteful number, since it uses less digits than its factorization.

20770034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60204.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 20770034 is about 4557.4152762284. The cubic root of 20770034 is about 274.8816416285.

Adding to 20770034 its reverse (43007702), we get a palindrome (63777736).

The spelling of 20770034 in words is "twenty million, seven hundred seventy thousand, thirty-four".

Divisors: 1 2 173 346 60029 120058 10385017 20770034