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20300422031 = 4713715120879
BaseRepresentation
bin10010111001111111…
…111101101110001111
31221101202211021210122
4102321333331232033
5313033402001111
613154220255155
71316030511611
oct227177755617
957352737718
1020300422031
11867807159a
123b266a14bb
131bb69c2856
14da8168db1
157dc30ecdb
hex4b9ffdb8f

20300422031 has 16 divisors (see below), whose sum is σ = 21022986240. Its totient is φ = 19591915200.

The previous prime is 20300422003. The next prime is 20300422039. The reversal of 20300422031 is 13022400302.

It is a cyclic number.

It is not a de Polignac number, because 20300422031 - 222 = 20296227727 is a prime.

It is a super-2 number, since 2×203004220312 (a number of 21 digits) 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 (20300422039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961850 + ... + 982728.

It is an arithmetic number, because the mean of its divisors is an integer number (1313936640).

Almost surely, 220300422031 is an apocalyptic number.

20300422031 is a deficient number, since it is larger than the sum of its proper divisors (722564209).

20300422031 is a wasteful number, since it uses less digits than its factorization.

20300422031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21214.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20300422031 its reverse (13022400302), we get a palindrome (33322822333).

The spelling of 20300422031 in words is "twenty billion, three hundred million, four hundred twenty-two thousand, thirty-one".

Divisors: 1 47 137 151 6439 7097 20687 20879 972289 981313 2860423 3152729 134439881 148178263 431923873 20300422031