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420292293 = 3197373549
BaseRepresentation
bin11001000011010…
…010011011000101
31002021212001122020
4121003102123011
51330043323133
6105412153353
713262265651
oct3103223305
91067761566
10420292293
111a6275903
12b8908859
13690c7a85
143db67a61
1526d710b3
hex190d26c5

420292293 has 8 divisors (see below), whose sum is σ = 589884000. Its totient is φ = 265447728.

The previous prime is 420292291. The next prime is 420292303. The reversal of 420292293 is 392292024.

It is a happy number.

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

It is not a de Polignac number, because 420292293 - 21 = 420292291 is a prime.

It is a super-2 number, since 2×4202922932 = 353291223110395698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420292291) 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 7 ways as a sum of consecutive naturals, for example, 3686718 + ... + 3686831.

It is an arithmetic number, because the mean of its divisors is an integer number (73735500).

Almost surely, 2420292293 is an apocalyptic number.

It is an amenable number.

420292293 is a deficient number, since it is larger than the sum of its proper divisors (169591707).

420292293 is a wasteful number, since it uses less digits than its factorization.

420292293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373571.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 420292293 is about 20501.0315106338. The cubic root of 420292293 is about 749.0609242286.

The spelling of 420292293 in words is "four hundred twenty million, two hundred ninety-two thousand, two hundred ninety-three".

Divisors: 1 3 19 57 7373549 22120647 140097431 420292293