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303412421 = 1326838699
BaseRepresentation
bin10010000101011…
…011010011000101
3210010220221121002
4102011123103011
51110133144141
650035103045
710342651214
oct2205332305
9703827532
10303412421
111462a5274
1285741a85
134ab240a0
142c42107b
151b984e9b
hex1215b4c5

303412421 has 8 divisors (see below), whose sum is σ = 326911200. Its totient is φ = 279936432.

The previous prime is 303412399. The next prime is 303412427. The reversal of 303412421 is 124214303.

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 303412421 - 26 = 303412357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303412393 and 303412402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303412427) 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, 30530 + ... + 39228.

It is an arithmetic number, because the mean of its divisors is an integer number (40863900).

Almost surely, 2303412421 is an apocalyptic number.

It is an amenable number.

303412421 is a deficient number, since it is larger than the sum of its proper divisors (23498779).

303412421 is a wasteful number, since it uses less digits than its factorization.

303412421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11395.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 303412421 is about 17418.7376408281. The cubic root of 303412421 is about 671.9615944664.

Adding to 303412421 its reverse (124214303), we get a palindrome (427626724).

The spelling of 303412421 in words is "three hundred three million, four hundred twelve thousand, four hundred twenty-one".

Divisors: 1 13 2683 8699 34879 113087 23339417 303412421