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420313233 = 31031360237
BaseRepresentation
bin11001000011010…
…111100010010001
31002021220010100210
4121003113202101
51330100010413
6105412434333
713262414004
oct3103274221
91067803323
10420313233
111a628a60a
12b89189a9
1369104472
143db7153b
1526d773c3
hex190d7891

420313233 has 8 divisors (see below), whose sum is σ = 565859008. Its totient is φ = 277488144.

The previous prime is 420313213. The next prime is 420313249. The reversal of 420313233 is 332313024.

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

It is not a de Polignac number, because 420313233 - 29 = 420312721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420313213) 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, 679810 + ... + 680427.

It is an arithmetic number, because the mean of its divisors is an integer number (70732376).

Almost surely, 2420313233 is an apocalyptic number.

It is an amenable number.

420313233 is a deficient number, since it is larger than the sum of its proper divisors (145545775).

420313233 is a wasteful number, since it uses less digits than its factorization.

420313233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360343.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 420313233 is about 20501.5422102826. The cubic root of 420313233 is about 749.0733640437.

Adding to 420313233 its reverse (332313024), we get a palindrome (752626257).

The spelling of 420313233 in words is "four hundred twenty million, three hundred thirteen thousand, two hundred thirty-three".

Divisors: 1 3 103 309 1360237 4080711 140104411 420313233