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20313111302 = 211923323241
BaseRepresentation
bin10010111010110000…
…010111101100000110
31221102122200222012122
4102322300113230012
5313100124030202
613155352245542
71316243411561
oct227260275406
957378628178
1020313111302
1186842491a0
123b2a9a08b2
131bb95164b3
14da9b0d4d8
157dd4b99a2
hex4bac17b06

20313111302 has 8 divisors (see below), whose sum is σ = 33239636712. Its totient is φ = 9233232400.

The previous prime is 20313111263. The next prime is 20313111307. The reversal of 20313111302 is 20311131302.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313111307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461661599 + ... + 461661642.

It is an arithmetic number, because the mean of its divisors is an integer number (4154954589).

Almost surely, 220313111302 is an apocalyptic number.

20313111302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20313111302 is a deficient number, since it is larger than the sum of its proper divisors (12926525410).

20313111302 is a wasteful number, since it uses less digits than its factorization.

20313111302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923323254.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20313111302 its reverse (20311131302), we get a palindrome (40624242604).

The spelling of 20313111302 in words is "twenty billion, three hundred thirteen million, one hundred eleven thousand, three hundred two".

Divisors: 1 2 11 22 923323241 1846646482 10156555651 20313111302