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30193760 = 255188711
BaseRepresentation
bin111001100101…
…1100001100000
32002211000001102
41303023201200
530212200020
62555053532
7514433312
oct163134140
962730042
1030193760
1116053023
12a1412a8
13634223c
14401d7b2
1529b6475
hex1ccb860

30193760 has 24 divisors (see below), whose sum is σ = 71333136. Its totient is φ = 12077440.

The previous prime is 30193759. The next prime is 30193777. The reversal of 30193760 is 6739103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94196 + ... + 94515.

It is an arithmetic number, because the mean of its divisors is an integer number (2972214).

Almost surely, 230193760 is an apocalyptic number.

It is an amenable number.

30193760 is an abundant number, since it is smaller than the sum of its proper divisors (41139376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30193760 is a wasteful number, since it uses less digits than its factorization.

30193760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188726 (or 188718 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 30193760 is about 5494.8848941538. The cubic root of 30193760 is about 311.3907681939.

The spelling of 30193760 in words is "thirty million, one hundred ninety-three thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 188711 377422 754844 943555 1509688 1887110 3019376 3774220 6038752 7548440 15096880 30193760