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20072935 = 54014587
BaseRepresentation
bin100110010010…
…0100111100111
31101202210220001
41030210213213
520114313220
61554122131
7332421451
oct114444747
941683801
1020072935
1110370103
126880347
13420a69c
1429472d1
151b6780a
hex13249e7

20072935 has 4 divisors (see below), whose sum is σ = 24087528. Its totient is φ = 16058344.

The previous prime is 20072933. The next prime is 20072939. The reversal of 20072935 is 53927002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53927002 = 226963501.

It is a cyclic number.

It is not a de Polignac number, because 20072935 - 21 = 20072933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20072933) 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 3 ways as a sum of consecutive naturals, for example, 2007289 + ... + 2007298.

It is an arithmetic number, because the mean of its divisors is an integer number (6021882).

Almost surely, 220072935 is an apocalyptic number.

20072935 is a deficient number, since it is larger than the sum of its proper divisors (4014593).

20072935 is an equidigital number, since it uses as much as digits as its factorization.

20072935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014592.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 20072935 is about 4480.2829151740. The cubic root of 20072935 is about 271.7713214576.

Adding to 20072935 its reverse (53927002), we get a palindrome (73999937).

The spelling of 20072935 in words is "twenty million, seventy-two thousand, nine hundred thirty-five".

Divisors: 1 5 4014587 20072935