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30585854 = 2139071297
BaseRepresentation
bin111010010101…
…1001111111110
32010112220220102
41310223033332
530312221404
63011321102
7520655405
oct164531776
963486812
1030585854
11162a0672
12a2b0192
13644b850
1440c263c
152a4271e
hex1d2b3fe

30585854 has 16 divisors (see below), whose sum is σ = 49500528. Its totient is φ = 14090112.

The previous prime is 30585853. The next prime is 30585869. The reversal of 30585854 is 45858503.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30585853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22934 + ... + 24230.

It is an arithmetic number, because the mean of its divisors is an integer number (3093783).

Almost surely, 230585854 is an apocalyptic number.

30585854 is a deficient number, since it is larger than the sum of its proper divisors (18914674).

30585854 is a wasteful number, since it uses less digits than its factorization.

30585854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 30585854 is about 5530.4479022951. The cubic root of 30585854 is about 312.7328747388.

The spelling of 30585854 in words is "thirty million, five hundred eighty-five thousand, eight hundred fifty-four".

Divisors: 1 2 13 26 907 1297 1814 2594 11791 16861 23582 33722 1176379 2352758 15292927 30585854