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30402430 = 253040243
BaseRepresentation
bin111001111111…
…0011101111110
32010012121021221
41303332131332
530240334210
63003343554
7516262552
oct163763576
963177257
1030402430
1116185883
12a221bba
1363b6206
144075862
152a081da
hex1cfe77e

30402430 has 8 divisors (see below), whose sum is σ = 54724392. Its totient is φ = 12160968.

The previous prime is 30402401. The next prime is 30402457. The reversal of 30402430 is 3420403.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520112 + ... + 1520131.

It is an arithmetic number, because the mean of its divisors is an integer number (6840549).

Almost surely, 230402430 is an apocalyptic number.

30402430 is a deficient number, since it is larger than the sum of its proper divisors (24321962).

30402430 is a wasteful number, since it uses less digits than its factorization.

30402430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040250.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30402430 is about 5513.8398598436. The cubic root of 30402430 is about 312.1064656931.

Adding to 30402430 its reverse (3420403), we get a palindrome (33822833).

The spelling of 30402430 in words is "thirty million, four hundred two thousand, four hundred thirty".

Divisors: 1 2 5 10 3040243 6080486 15201215 30402430