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420164353 = 760023479
BaseRepresentation
bin11001000010110…
…011001100000001
31002021121120010201
4121002303030001
51330030224403
6105405325201
713261223650
oct3102631401
91067546121
10420164353
111a6198774
12b8866801
136908177b
143db33197
1526d4821d
hex190b3301

420164353 has 4 divisors (see below), whose sum is σ = 480187840. Its totient is φ = 360140868.

The previous prime is 420164321. The next prime is 420164363. The reversal of 420164353 is 353461024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420164353 - 25 = 420164321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420164363) 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 3 ways as a sum of consecutive naturals, for example, 30011733 + ... + 30011746.

It is an arithmetic number, because the mean of its divisors is an integer number (120046960).

Almost surely, 2420164353 is an apocalyptic number.

It is an amenable number.

420164353 is a deficient number, since it is larger than the sum of its proper divisors (60023487).

420164353 is an equidigital number, since it uses as much as digits as its factorization.

420164353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60023486.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 420164353 is about 20497.9109423375. The cubic root of 420164353 is about 748.9849100021.

The spelling of 420164353 in words is "four hundred twenty million, one hundred sixty-four thousand, three hundred fifty-three".

Divisors: 1 7 60023479 420164353