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20202701 = 22439007
BaseRepresentation
bin100110100010…
…0010011001101
31102000101220012
41031010103031
520132441301
62001003005
7333502001
oct115042315
942011805
1020202701
1110449652
126923465
13425477c
14297c701
151b90ebb
hex13444cd

20202701 has 4 divisors (see below), whose sum is σ = 20213952. Its totient is φ = 20191452.

The previous prime is 20202697. The next prime is 20202751. The reversal of 20202701 is 10720202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10720202 = 25360101.

It is a cyclic number.

It is not a de Polignac number, because 20202701 - 22 = 20202697 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202751) 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 3 ways as a sum of consecutive naturals, for example, 2261 + ... + 6746.

It is an arithmetic number, because the mean of its divisors is an integer number (5053488).

Almost surely, 220202701 is an apocalyptic number.

It is an amenable number.

20202701 is a deficient number, since it is larger than the sum of its proper divisors (11251).

20202701 is an equidigital number, since it uses as much as digits as its factorization.

20202701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11250.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 20202701 is about 4494.7414831111. The cubic root of 20202701 is about 272.3557062294.

Adding to 20202701 its reverse (10720202), we get a palindrome (30922903).

The spelling of 20202701 in words is "twenty million, two hundred two thousand, seven hundred one".

Divisors: 1 2243 9007 20202701