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34446431 = 71485161
BaseRepresentation
bin1000001101100…
…1110001011111
32101211001121202
42003121301133
532304241211
63230150115
7565534625
oct203316137
971731552
1034446431
1118498128
12b65233b
1371a0b06
144809515
15305653b
hex20d9c5f

34446431 has 4 divisors (see below), whose sum is σ = 34931664. Its totient is φ = 33961200.

The previous prime is 34446427. The next prime is 34446443. The reversal of 34446431 is 13464443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13464443 = 109123527.

It is a cyclic number.

It is not a de Polignac number, because 34446431 - 22 = 34446427 is a prime.

It is a super-2 number, since 2×344464312 = 2373113217275522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34446394 and 34446403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34446331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242510 + ... + 242651.

It is an arithmetic number, because the mean of its divisors is an integer number (8732916).

Almost surely, 234446431 is an apocalyptic number.

34446431 is a deficient number, since it is larger than the sum of its proper divisors (485233).

34446431 is an equidigital number, since it uses as much as digits as its factorization.

34446431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485232.

The product of its digits is 13824, while the sum is 29.

The square root of 34446431 is about 5869.1081946067. The cubic root of 34446431 is about 325.3729241893.

The spelling of 34446431 in words is "thirty-four million, four hundred forty-six thousand, four hundred thirty-one".

Divisors: 1 71 485161 34446431