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20313030005 = 573463120199
BaseRepresentation
bin10010111010110000…
…000011110101110101
31221102122112211200122
4102322300003311311
5313100113430010
613155350421325
71316242622552
oct227260036565
957378484618
1020313030005
1186841a3104
123b2a961845
131bb94b84a8
14da9acba29
157dd4a0855
hex4bac03d75

20313030005 has 16 divisors (see below), whose sum is σ = 24763123200. Its totient is φ = 15993065088.

The previous prime is 20313029987. The next prime is 20313030011. The reversal of 20313030005 is 50003031302.

It is a cyclic number.

It is not a de Polignac number, because 20313030005 - 28 = 20313029749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108896 + ... + 229094.

It is an arithmetic number, because the mean of its divisors is an integer number (1547695200).

Almost surely, 220313030005 is an apocalyptic number.

It is an amenable number.

20313030005 is a deficient number, since it is larger than the sum of its proper divisors (4450093195).

20313030005 is a wasteful number, since it uses less digits than its factorization.

20313030005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120740.

The product of its (nonzero) digits is 270, while the sum is 17.

Adding to 20313030005 its reverse (50003031302), we get a palindrome (70316061307).

The spelling of 20313030005 in words is "twenty billion, three hundred thirteen million, thirty thousand, five".

Divisors: 1 5 73 365 463 2315 33799 120199 168995 600995 8774527 43872635 55652137 278260685 4062606001 20313030005