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30276085 = 574320117
BaseRepresentation
bin111001101111…
…1100111110101
32002222011222111
41303133213311
530222313320
63000531021
7515225320
oct163374765
962864874
1030276085
11160a9964
12a180a71
136370858
1440417b7
1529d0a5a
hex1cdf9f5

30276085 has 16 divisors (see below), whose sum is σ = 42489216. Its totient is φ = 20276928.

The previous prime is 30276079. The next prime is 30276089. The reversal of 30276085 is 58067203.

It is not a de Polignac number, because 30276085 - 27 = 30275957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30276089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8554 + ... + 11563.

It is an arithmetic number, because the mean of its divisors is an integer number (2655576).

Almost surely, 230276085 is an apocalyptic number.

30276085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30276085 is a deficient number, since it is larger than the sum of its proper divisors (12213131).

30276085 is a wasteful number, since it uses less digits than its factorization.

30276085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20172.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 30276085 is about 5502.3708526416. The cubic root of 30276085 is about 311.6735195700.

The spelling of 30276085 in words is "thirty million, two hundred seventy-six thousand, eighty-five".

Divisors: 1 5 7 35 43 215 301 1505 20117 100585 140819 704095 865031 4325155 6055217 30276085