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30213330 = 2357143873
BaseRepresentation
bin111001101000…
…0010011010010
32002211222220020
41303100103102
530213311310
62555324310
7514544340
oct163202322
962758806
1030213330
11160667a4
12a150696
13634b114
144026990
1529bc170
hex1cd04d2

30213330 has 32 divisors (see below), whose sum is σ = 82871424. Its totient is φ = 6905856.

The previous prime is 30213319. The next prime is 30213341. The reversal of 30213330 is 3331203.

It is an interprime number because it is at equal distance from previous prime (30213319) and next prime (30213341).

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 71727 + ... + 72146.

It is an arithmetic number, because the mean of its divisors is an integer number (2589732).

Almost surely, 230213330 is an apocalyptic number.

30213330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30213330 is an abundant number, since it is smaller than the sum of its proper divisors (52658094).

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

30213330 is a wasteful number, since it uses less digits than its factorization.

30213330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143890.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 30213330 is about 5496.6653527389. The cubic root of 30213330 is about 311.4580293456.

Adding to 30213330 its reverse (3331203), we get a palindrome (33544533).

The spelling of 30213330 in words is "thirty million, two hundred thirteen thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 143873 287746 431619 719365 863238 1007111 1438730 2014222 2158095 3021333 4316190 5035555 6042666 10071110 15106665 30213330