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420430463 = 3147288559
BaseRepresentation
bin11001000011110…
…100001001111111
31002022010002011122
4121003310021333
51330112233323
6105415141155
713263412535
oct3103641177
91068102148
10420430463
111a635a6a2
12b89747bb
136914592b
143dba2155
1526d9bec8
hex190f427f

420430463 has 8 divisors (see below), whose sum is σ = 443228160. Its totient is φ = 398210040.

The previous prime is 420430453. The next prime is 420430481. The reversal of 420430463 is 364034024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-420430463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420430453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142823 + ... + 145736.

It is an arithmetic number, because the mean of its divisors is an integer number (55403520).

Almost surely, 2420430463 is an apocalyptic number.

420430463 is a deficient number, since it is larger than the sum of its proper divisors (22797697).

420430463 is a wasteful number, since it uses less digits than its factorization.

420430463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288637.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 420430463 is about 20504.4010641618. The cubic root of 420430463 is about 749.1429991799.

Adding to 420430463 its reverse (364034024), we get a palindrome (784464487).

The spelling of 420430463 in words is "four hundred twenty million, four hundred thirty thousand, four hundred sixty-three".

Divisors: 1 31 47 1457 288559 8945329 13562273 420430463