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30266885 = 5111732371
BaseRepresentation
bin111001101110…
…1011000000101
32002221201100202
41303131120011
530222020020
63000420245
7515156435
oct163353005
962851322
1030266885
11160a2a60
12a177685
1363695cc
14403c2c5
1529cce75
hex1cdd605

30266885 has 16 divisors (see below), whose sum is σ = 41954112. Its totient is φ = 20716800.

The previous prime is 30266879. The next prime is 30266891. The reversal of 30266885 is 58866203.

It is an interprime number because it is at equal distance from previous prime (30266879) and next prime (30266891).

It is not a de Polignac number, because 30266885 - 220 = 29218309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15251 + ... + 17120.

It is an arithmetic number, because the mean of its divisors is an integer number (2622132).

Almost surely, 230266885 is an apocalyptic number.

It is an amenable number.

30266885 is a deficient number, since it is larger than the sum of its proper divisors (11687227).

30266885 is a wasteful number, since it uses less digits than its factorization.

30266885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32404.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 30266885 is about 5501.5347858575. The cubic root of 30266885 is about 311.6419469402.

The spelling of 30266885 in words is "thirty million, two hundred sixty-six thousand, eight hundred eighty-five".

Divisors: 1 5 11 17 55 85 187 935 32371 161855 356081 550307 1780405 2751535 6053377 30266885