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30402412 = 22232771193
BaseRepresentation
bin111001111111…
…0011101101100
32010012121021021
41303332131230
530240334122
63003343524
7516262525
oct163763554
963177237
1030402412
1116185867
12a221ba4
1363b61c1
14407584c
152a081c7
hex1cfe76c

30402412 has 24 divisors (see below), whose sum is σ = 55764576. Its totient is φ = 14475648.

The previous prime is 30402401. The next prime is 30402457. The reversal of 30402412 is 21420403.

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, 24888 + ... + 26080.

It is an arithmetic number, because the mean of its divisors is an integer number (2323524).

Almost surely, 230402412 is an apocalyptic number.

It is an amenable number.

30402412 is a deficient number, since it is larger than the sum of its proper divisors (25362164).

30402412 is a wasteful number, since it uses less digits than its factorization.

30402412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30402412 is about 5513.8382275870. The cubic root of 30402412 is about 312.1064040980.

Adding to 30402412 its reverse (21420403), we get a palindrome (51822815).

Subtracting from 30402412 its reverse (21420403), we obtain a square (8982009 = 29972).

The spelling of 30402412 in words is "thirty million, four hundred two thousand, four hundred twelve".

Divisors: 1 2 4 23 46 92 277 554 1108 1193 2386 4772 6371 12742 25484 27439 54878 109756 330461 660922 1321844 7600603 15201206 30402412