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20200032015 = 352835698363
BaseRepresentation
bin10010110100000001…
…000000011100001111
31221010202220221120220
4102310001000130033
5312332202011030
613140232442423
71313401303422
oct226401003417
957122827526
1020200032015
118626434039
123ab8b49413
131b9bc73687
14d98ab59b9
157d35cea10
hex4b404070f

20200032015 has 32 divisors (see below), whose sum is σ = 32495143680. Its totient is φ = 10715133696.

The previous prime is 20200031977. The next prime is 20200032029. The reversal of 20200032015 is 51023000202.

It is not a de Polignac number, because 20200032015 - 29 = 20200031503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 20200031985 and 20200032003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2411224 + ... + 2419586.

It is an arithmetic number, because the mean of its divisors is an integer number (1015473240).

Almost surely, 220200032015 is an apocalyptic number.

20200032015 is a deficient number, since it is larger than the sum of its proper divisors (12295111665).

20200032015 is a wasteful number, since it uses less digits than its factorization.

20200032015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9223.

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 20200032015 its reverse (51023000202), we get a palindrome (71223032217).

The spelling of 20200032015 in words is "twenty billion, two hundred million, thirty-two thousand, fifteen".

Divisors: 1 3 5 15 283 569 849 1415 1707 2845 4245 8363 8535 25089 41815 125445 161027 483081 805135 2366729 2415405 4758547 7100187 11833645 14275641 23792735 35500935 71378205 1346668801 4040006403 6733344005 20200032015