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30269811 = 31113371907
BaseRepresentation
bin111001101111…
…0000101110011
32002221212101010
41303132011303
530222113221
63000442003
7515201115
oct163360563
962855333
1030269811
11160a5180
12a179303
13636aa40
14403d3b5
1529cdc76
hex1cde173

30269811 has 32 divisors (see below), whose sum is σ = 48722688. Its totient is φ = 16467840.

The previous prime is 30269791. The next prime is 30269821. The reversal of 30269811 is 11896203.

It is not a de Polignac number, because 30269811 - 27 = 30269683 is a prime.

It is a super-2 number, since 2×302698112 = 1832522915951442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30269821) 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, 14920 + ... + 16826.

It is an arithmetic number, because the mean of its divisors is an integer number (1522584).

Almost surely, 230269811 is an apocalyptic number.

30269811 is a deficient number, since it is larger than the sum of its proper divisors (18452877).

30269811 is a wasteful number, since it uses less digits than its factorization.

30269811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 30269811 is about 5501.8007052237. The cubic root of 30269811 is about 311.6519891029.

The spelling of 30269811 in words is "thirty million, two hundred sixty-nine thousand, eight hundred eleven".

Divisors: 1 3 11 13 33 37 39 111 143 407 429 481 1221 1443 1907 5291 5721 15873 20977 24791 62931 70559 74373 211677 272701 776149 818103 917267 2328447 2751801 10089937 30269811