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30014439 = 3713109943
BaseRepresentation
bin111001001111…
…1101111100111
32002110220001220
41302133233213
530140430224
62551151423
7513055440
oct162375747
962426056
1030014439
1115a40324
12a075573
1362ab730
143db42c7
15297d279
hex1c9fbe7

30014439 has 16 divisors (see below), whose sum is σ = 49254912. Its totient is φ = 15831648.

The previous prime is 30014431. The next prime is 30014443. The reversal of 30014439 is 93441003.

It is not a de Polignac number, because 30014439 - 23 = 30014431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30014431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54699 + ... + 55244.

It is an arithmetic number, because the mean of its divisors is an integer number (3078432).

Almost surely, 230014439 is an apocalyptic number.

30014439 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

30014439 is a deficient number, since it is larger than the sum of its proper divisors (19240473).

30014439 is a wasteful number, since it uses less digits than its factorization.

30014439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109966.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30014439 is about 5478.5435108248. The cubic root of 30014439 is about 310.7730929667.

The spelling of 30014439 in words is "thirty million, fourteen thousand, four hundred thirty-nine".

Divisors: 1 3 7 13 21 39 91 273 109943 329829 769601 1429259 2308803 4287777 10004813 30014439