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20300485 = 515672591
BaseRepresentation
bin100110101110…
…0001011000101
31102012101000211
41031130023011
520144103420
62003035421
7334360042
oct115341305
942171024
1020300485
1110506067
12696bb71
13428a12a
1429a61c9
151baee5a
hex135c2c5

20300485 has 8 divisors (see below), whose sum is σ = 24385536. Its totient is φ = 16223760.

The previous prime is 20300479. The next prime is 20300491. The reversal of 20300485 is 58400302.

It is an interprime number because it is at equal distance from previous prime (20300479) and next prime (20300491).

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

It is not a de Polignac number, because 20300485 - 23 = 20300477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6540 + ... + 9130.

It is an arithmetic number, because the mean of its divisors is an integer number (3048192).

Almost surely, 220300485 is an apocalyptic number.

It is an amenable number.

20300485 is a deficient number, since it is larger than the sum of its proper divisors (4085051).

20300485 is a wasteful number, since it uses less digits than its factorization.

20300485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20300485 is about 4505.6059525884. The cubic root of 20300485 is about 272.7944128808.

Adding to 20300485 its reverse (58400302), we get a palindrome (78700787).

The spelling of 20300485 in words is "twenty million, three hundred thousand, four hundred eighty-five".

Divisors: 1 5 1567 2591 7835 12955 4060097 20300485