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3430389 = 34724329
BaseRepresentation
bin1101000101011111110101
320110021121110
431011133311
51334233024
6201305233
741105064
oct15053765
96407543
103430389
111a33336
121195219
13931521
146541db
1547b629
hex3457f5

3430389 has 8 divisors (see below), whose sum is σ = 4671360. Its totient is φ = 2238176.

The previous prime is 3430387. The next prime is 3430391. The reversal of 3430389 is 9830343.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3430387) and next prime (3430391).

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 3430389 - 21 = 3430387 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3430387) 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, 12024 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (583920).

Almost surely, 23430389 is an apocalyptic number.

It is an amenable number.

3430389 is a deficient number, since it is larger than the sum of its proper divisors (1240971).

3430389 is a wasteful number, since it uses less digits than its factorization.

3430389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24379.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3430389 is about 1852.1309348963. The cubic root of 3430389 is about 150.8161292778.

The spelling of 3430389 in words is "three million, four hundred thirty thousand, three hundred eighty-nine".

Divisors: 1 3 47 141 24329 72987 1143463 3430389