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420304413 = 3178241263
BaseRepresentation
bin11001000011010…
…101011000011101
31002021212200021010
4121003111120131
51330044220123
6105412325433
713262346204
oct3103253035
91067780233
10420304413
111a6283a21
12b8913879
1369100449
143db6c23b
1526d74993
hex190d561d

420304413 has 8 divisors (see below), whose sum is σ = 593371008. Its totient is φ = 263720384.

The previous prime is 420304397. The next prime is 420304429. The reversal of 420304413 is 314403024.

It is an interprime number because it is at equal distance from previous prime (420304397) and next prime (420304429).

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

It is a cyclic number.

It is not a de Polignac number, because 420304413 - 24 = 420304397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420304413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420304483) 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, 4120581 + ... + 4120682.

It is an arithmetic number, because the mean of its divisors is an integer number (74171376).

Almost surely, 2420304413 is an apocalyptic number.

It is an amenable number.

420304413 is a deficient number, since it is larger than the sum of its proper divisors (173066595).

420304413 is a wasteful number, since it uses less digits than its factorization.

420304413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8241283.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 420304413 is about 20501.3271033853. The cubic root of 420304413 is about 749.0681244011.

Adding to 420304413 its reverse (314403024), we get a palindrome (734707437).

The spelling of 420304413 in words is "four hundred twenty million, three hundred four thousand, four hundred thirteen".

Divisors: 1 3 17 51 8241263 24723789 140101471 420304413