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30416439 = 310138813
BaseRepresentation
bin111010000000…
…1111000110111
32010020022111210
41310001320313
530241311224
63003532503
7516351444
oct164017067
963208453
1030416439
1116195359
12a22a133
1363bc6c1
14407a9cb
152a0c429
hex1d01e37

30416439 has 4 divisors (see below), whose sum is σ = 40555256. Its totient is φ = 20277624.

The previous prime is 30416423. The next prime is 30416443. The reversal of 30416439 is 93461403.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30416439 - 24 = 30416423 is a prime.

It is a super-2 number, since 2×304164392 = 1850319522881442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30486439) 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 3 ways as a sum of consecutive naturals, for example, 5069404 + ... + 5069409.

It is an arithmetic number, because the mean of its divisors is an integer number (10138814).

Almost surely, 230416439 is an apocalyptic number.

30416439 is a deficient number, since it is larger than the sum of its proper divisors (10138817).

30416439 is a wasteful number, since it uses less digits than its factorization.

30416439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10138816.

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

The square root of 30416439 is about 5515.1100623650. The cubic root of 30416439 is about 312.1543963803.

The spelling of 30416439 in words is "thirty million, four hundred sixteen thousand, four hundred thirty-nine".

Divisors: 1 3 10138813 30416439