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30984415 = 5721111497
BaseRepresentation
bin111011000110…
…0100011011111
32011022011121221
41312030203133
530413000130
63024034211
7524235400
oct166144337
964264557
1030984415
1116543060
12a462967
13655b097
1441879a7
152ac087a
hex1d8c8df

30984415 has 24 divisors (see below), whose sum is σ = 47187792. Its totient is φ = 19313280.

The previous prime is 30984409. The next prime is 30984439. The reversal of 30984415 is 51448903.

It is not a de Polignac number, because 30984415 - 219 = 30460127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3054 + ... + 8443.

It is an arithmetic number, because the mean of its divisors is an integer number (1966158).

Almost surely, 230984415 is an apocalyptic number.

30984415 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30984415 is a deficient number, since it is larger than the sum of its proper divisors (16203377).

30984415 is a wasteful number, since it uses less digits than its factorization.

30984415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11527 (or 11520 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 30984415 is about 5566.3646125636. The cubic root of 30984415 is about 314.0854129550.

The spelling of 30984415 in words is "thirty million, nine hundred eighty-four thousand, four hundred fifteen".

Divisors: 1 5 7 11 35 49 55 77 245 385 539 2695 11497 57485 80479 126467 402395 563353 632335 885269 2816765 4426345 6196883 30984415