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304401769 = 7214094409
BaseRepresentation
bin10010001001001…
…100110101101001
3210012210012201121
4102021030311221
51110411324034
650112215241
710354241500
oct2211146551
9705705647
10304401769
11146910611
1285b3a521
134b0ac4b9
142c5db837
151bacd1b4
hex1224cd69

304401769 has 12 divisors (see below), whose sum is σ = 354431700. Its totient is φ = 260671488.

The previous prime is 304401761. The next prime is 304401781. The reversal of 304401769 is 967104403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11478544 + 292923225 = 3388^2 + 17115^2 .

It is not a de Polignac number, because 304401769 - 23 = 304401761 is a prime.

It is a super-2 number, since 2×3044017692 = 185320873940658722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304401761) 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 11 ways as a sum of consecutive naturals, for example, 66837 + ... + 71245.

It is an arithmetic number, because the mean of its divisors is an integer number (29535975).

Almost surely, 2304401769 is an apocalyptic number.

It is an amenable number.

304401769 is a deficient number, since it is larger than the sum of its proper divisors (50029931).

304401769 is a wasteful number, since it uses less digits than its factorization.

304401769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 304401769 is about 17447.1134861902. The cubic root of 304401769 is about 672.6911653258.

The spelling of 304401769 in words is "three hundred four million, four hundred one thousand, seven hundred sixty-nine".

Divisors: 1 7 49 1409 4409 9863 30863 69041 216041 6212281 43485967 304401769