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420892068 = 22335074339
BaseRepresentation
bin11001000101100…
…100110110100100
31002022222112101010
4121011210312210
51330222021233
6105433102220
713300344402
oct3105446644
91068875333
10420892068
111a6645493
12b8b57970
1369277a7c
143dc82472
1526e3db63
hex19164da4

420892068 has 12 divisors (see below), whose sum is σ = 982081520. Its totient is φ = 140297352.

The previous prime is 420892067. The next prime is 420892079. The reversal of 420892068 is 860298024.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (420892067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17537158 + ... + 17537181.

Almost surely, 2420892068 is an apocalyptic number.

It is an amenable number.

420892068 is an abundant number, since it is smaller than the sum of its proper divisors (561189452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420892068 is a wasteful number, since it uses less digits than its factorization.

420892068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35074346 (or 35074344 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 420892068 is about 20515.6542181818. The cubic root of 420892068 is about 749.4170688168.

The spelling of 420892068 in words is "four hundred twenty million, eight hundred ninety-two thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 35074339 70148678 105223017 140297356 210446034 420892068