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30342430 = 2519159697
BaseRepresentation
bin111001110111…
…1110100011110
32010002112222201
41303233310132
530231424210
63002202114
7515622616
oct163576436
963075881
1030342430
1116144798
12a1b333a
136394b01
14405ba46
1529e553a
hex1cefd1e

30342430 has 16 divisors (see below), whose sum is σ = 57491280. Its totient is φ = 11498112.

The previous prime is 30342413. The next prime is 30342493. The reversal of 30342430 is 3424303.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 30342398 and 30342407.

It is a congruent number.

It is an unprimeable number.

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, 79659 + ... + 80038.

It is an arithmetic number, because the mean of its divisors is an integer number (3593205).

Almost surely, 230342430 is an apocalyptic number.

30342430 is a deficient number, since it is larger than the sum of its proper divisors (27148850).

30342430 is a wasteful number, since it uses less digits than its factorization.

30342430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159723.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 30342430 is about 5508.3963183489. The cubic root of 30342430 is about 311.9010136895.

Adding to 30342430 its reverse (3424303), we get a palindrome (33766733).

The spelling of 30342430 in words is "thirty million, three hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 159697 319394 798485 1596970 3034243 6068486 15171215 30342430