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30030436 = 2253141653
BaseRepresentation
bin111001010001…
…1101001100100
32002111201000101
41302203221210
530141433221
62551353444
7513153202
oct162435144
962451011
1030030436
1115a51347
12a082884
1362b5ab7
143dba072
152982d91
hex1ca3a64

30030436 has 12 divisors (see below), whose sum is σ = 53545212. Its totient is φ = 14731808.

The previous prime is 30030419. The next prime is 30030437. The reversal of 30030436 is 63403003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21678336 + 8352100 = 4656^2 + 2890^2 .

It is not an unprimeable number, because it can be changed into a prime (30030437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70615 + ... + 71038.

It is an arithmetic number, because the mean of its divisors is an integer number (4462101).

Almost surely, 230030436 is an apocalyptic number.

It is an amenable number.

30030436 is a deficient number, since it is larger than the sum of its proper divisors (23514776).

30030436 is a wasteful number, since it uses less digits than its factorization.

30030436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141710 (or 141708 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 30030436 is about 5480.0032846705. The cubic root of 30030436 is about 310.8282947782.

Adding to 30030436 its reverse (63403003), we get a palindrome (93433439).

It can be divided in two parts, 300304 and 36, that multiplied together give a square (10810944 = 32882).

The spelling of 30030436 in words is "thirty million, thirty thousand, four hundred thirty-six".

Divisors: 1 2 4 53 106 212 141653 283306 566612 7507609 15015218 30030436