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20314983 = 3132172357
BaseRepresentation
bin100110101111…
…1101101100111
31102020002220210
41031133231213
520200034413
62003230503
7334450233
oct115375547
942202823
1020314983
1110515a47
126978433
134293900
1429ab5c3
151bb43c3
hex135fb67

20314983 has 24 divisors (see below), whose sum is σ = 31069008. Its totient is φ = 11761152.

The previous prime is 20314981. The next prime is 20315011. The reversal of 20314983 is 38941302.

It is not a de Polignac number, because 20314983 - 21 = 20314981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20314983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314981) 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 23 ways as a sum of consecutive naturals, for example, 7441 + ... + 9797.

It is an arithmetic number, because the mean of its divisors is an integer number (1294542).

Almost surely, 220314983 is an apocalyptic number.

20314983 is a deficient number, since it is larger than the sum of its proper divisors (10754025).

20314983 is a wasteful number, since it uses less digits than its factorization.

20314983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403 (or 2390 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20314983 is about 4507.2145500298. The cubic root of 20314983 is about 272.8593379678.

The spelling of 20314983 in words is "twenty million, three hundred fourteen thousand, nine hundred eighty-three".

Divisors: 1 3 13 17 39 51 169 221 507 663 2357 2873 7071 8619 30641 40069 91923 120207 398333 520897 1194999 1562691 6771661 20314983