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30853419 = 3172329907
BaseRepresentation
bin111010110110…
…0100100101011
32011001111221020
41311230210223
530344302134
63021143523
7523151442
oct165544453
964044836
1030853419
11164636a3
12a3baba3
13651357c
144151d59
152a96b49
hex1d6c92b

30853419 has 32 divisors (see below), whose sum is σ = 47070720. Its totient is φ = 17859072.

The previous prime is 30853411. The next prime is 30853423. The reversal of 30853419 is 91435803.

It is not a de Polignac number, because 30853419 - 23 = 30853411 is a prime.

It is a super-2 number, since 2×308534192 = 1903866927979122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30853419.

It is not an unprimeable number, because it can be changed into a prime (30853411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33564 + ... + 34470.

It is an arithmetic number, because the mean of its divisors is an integer number (1470960).

Almost surely, 230853419 is an apocalyptic number.

30853419 is a deficient number, since it is larger than the sum of its proper divisors (16217301).

30853419 is a wasteful number, since it uses less digits than its factorization.

30853419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 30853419 is about 5554.5854030702. The cubic root of 30853419 is about 313.6421572931.

The spelling of 30853419 in words is "thirty million, eight hundred fifty-three thousand, four hundred nineteen".

Divisors: 1 3 17 23 29 51 69 87 391 493 667 907 1173 1479 2001 2721 11339 15419 20861 26303 34017 46257 62583 78909 354637 447151 604969 1063911 1341453 1814907 10284473 30853419