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20460001 = 374311283
BaseRepresentation
bin100111000001…
…1000111100001
31102111110211211
41032003013201
520214210001
62010310121
7335623102
oct116030741
942443754
1020460001
11106049a1
126a28341
134314913
142a083a9
151be2351
hex13831e1

20460001 has 8 divisors (see below), whose sum is σ = 21078144. Its totient is φ = 19845360.

The previous prime is 20459987. The next prime is 20460007. The reversal of 20460001 is 10006402.

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

It is a cyclic number.

It is not a de Polignac number, because 20460001 - 217 = 20328929 is a prime.

It is a super-2 number, since 2×204600012 = 837223281840002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20460007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15306 + ... + 16588.

It is an arithmetic number, because the mean of its divisors is an integer number (2634768).

Almost surely, 220460001 is an apocalyptic number.

It is an amenable number.

20460001 is a deficient number, since it is larger than the sum of its proper divisors (618143).

20460001 is a wasteful number, since it uses less digits than its factorization.

20460001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20460001 is about 4523.2732616989. The cubic root of 20460001 is about 273.5070656700.

Adding to 20460001 its reverse (10006402), we get a palindrome (30466403).

The spelling of 20460001 in words is "twenty million, four hundred sixty thousand, one".

Divisors: 1 37 431 1283 15947 47471 552973 20460001