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30085146 = 23271318367
BaseRepresentation
bin111001011000…
…1000000011010
32002121111001200
41302301000122
530200211041
62552455030
7513501540
oct162610032
962544050
1030085146
1115a89463
12a0aa476
136304980
143dd1d90
1529941b6
hex1cb101a

30085146 has 48 divisors (see below), whose sum is σ = 80231424. Its totient is φ = 7934112.

The previous prime is 30085141. The next prime is 30085147. The reversal of 30085146 is 64158003.

It is not an unprimeable number, because it can be changed into a prime (30085141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7546 + ... + 10821.

It is an arithmetic number, because the mean of its divisors is an integer number (1671488).

Almost surely, 230085146 is an apocalyptic number.

30085146 is an abundant number, since it is smaller than the sum of its proper divisors (50146278).

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

30085146 is a wasteful number, since it uses less digits than its factorization.

30085146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18395 (or 18392 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 30085146 is about 5484.9927985367. The cubic root of 30085146 is about 311.0169378326.

The spelling of 30085146 in words is "thirty million, eighty-five thousand, one hundred forty-six".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1638 18367 36734 55101 110202 128569 165303 238771 257138 330606 385707 477542 716313 771414 1157121 1432626 1671397 2148939 2314242 3342794 4297878 5014191 10028382 15042573 30085146