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20313132310 = 2518311109401
BaseRepresentation
bin10010111010110000…
…011100110100010110
31221102122202001000201
4102322300130310112
5313100130213220
613155352531114
71316243530042
oct227260346426
957378661021
1020313132310
118684262a59
123b2a9b0a9a
131bb9522c23
14da9b17022
157dd4c0d0a
hex4bac1cd16

20313132310 has 16 divisors (see below), whose sum is σ = 36583640352. Its totient is φ = 8120808000.

The previous prime is 20313132271. The next prime is 20313132311. The reversal of 20313132310 is 1323131302.

It is a super-2 number, since 2×203131323102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313132311) 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 7 ways as a sum of consecutive naturals, for example, 536391 + ... + 573010.

It is an arithmetic number, because the mean of its divisors is an integer number (2286477522).

Almost surely, 220313132310 is an apocalyptic number.

20313132310 is a deficient number, since it is larger than the sum of its proper divisors (16270508042).

20313132310 is a wasteful number, since it uses less digits than its factorization.

20313132310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111239.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20313132310 its reverse (1323131302), we get a palindrome (21636263612).

The spelling of 20313132310 in words is "twenty billion, three hundred thirteen million, one hundred thirty-two thousand, three hundred ten".

Divisors: 1 2 5 10 1831 3662 9155 18310 1109401 2218802 5547005 11094010 2031313231 4062626462 10156566155 20313132310