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3430947 = 31387973
BaseRepresentation
bin1101000101101000100011
320110022101010
431011220203
51334242242
6201312003
741106522
oct15055043
96408333
103430947
111a337a3
121195603
13931860
146544b9
1547b89c
hex345a23

3430947 has 8 divisors (see below), whose sum is σ = 4926544. Its totient is φ = 2111328.

The previous prime is 3430939. The next prime is 3430949. The reversal of 3430947 is 7490343.

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

It is not a de Polignac number, because 3430947 - 23 = 3430939 is a prime.

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

It is a Duffinian number.

3430947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3430949) 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, 43948 + ... + 44025.

It is an arithmetic number, because the mean of its divisors is an integer number (615818).

Almost surely, 23430947 is an apocalyptic number.

3430947 is a deficient number, since it is larger than the sum of its proper divisors (1495597).

3430947 is a wasteful number, since it uses less digits than its factorization.

3430947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87989.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 3430947 is about 1852.2815660693. The cubic root of 3430947 is about 150.8243062744.

The spelling of 3430947 in words is "three million, four hundred thirty thousand, nine hundred forty-seven".

Divisors: 1 3 13 39 87973 263919 1143649 3430947