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30402230 = 253040223
BaseRepresentation
bin111001111111…
…0011010110110
32010012121000112
41303332122312
530240332410
63003343022
7516262145
oct163763266
963177015
1030402230
1116185711
12a221a72
1363b60b1
14407575c
152a08105
hex1cfe6b6

30402230 has 8 divisors (see below), whose sum is σ = 54724032. Its totient is φ = 12160888.

The previous prime is 30402209. The next prime is 30402257. The reversal of 30402230 is 3220403.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1520102 + ... + 1520121.

It is an arithmetic number, because the mean of its divisors is an integer number (6840504).

Almost surely, 230402230 is an apocalyptic number.

30402230 is a deficient number, since it is larger than the sum of its proper divisors (24321802).

30402230 is a wasteful number, since it uses less digits than its factorization.

30402230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040230.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30402230 is about 5513.8217236323. The cubic root of 30402230 is about 312.1057813023.

Adding to 30402230 its reverse (3220403), we get a palindrome (33622633).

The spelling of 30402230 in words is "thirty million, four hundred two thousand, two hundred thirty".

Divisors: 1 2 5 10 3040223 6080446 15201115 30402230