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30152445 = 353316073
BaseRepresentation
bin111001100000…
…1011011111101
32002201220101020
41303001123331
530204334240
62554134353
7514202001
oct163013375
962656336
1030152445
1116024a84
12a1213b9
1363294ab
14400c701
1529a90d0
hex1cc16fd

30152445 has 16 divisors (see below), whose sum is σ = 48397632. Its totient is φ = 16030080.

The previous prime is 30152443. The next prime is 30152459. The reversal of 30152445 is 54425103.

It is not a de Polignac number, because 30152445 - 21 = 30152443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1929 + ... + 8001.

It is an arithmetic number, because the mean of its divisors is an integer number (3024852).

Almost surely, 230152445 is an apocalyptic number.

It is an amenable number.

30152445 is a deficient number, since it is larger than the sum of its proper divisors (18245187).

30152445 is a wasteful number, since it uses less digits than its factorization.

30152445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 30152445 is about 5491.1242018370. The cubic root of 30152445 is about 311.2486750157.

Adding to 30152445 its reverse (54425103), we get a palindrome (84577548).

It can be divided in two parts, 3015 and 2445, that added together give a triangular number (5460 = T104).

The spelling of 30152445 in words is "thirty million, one hundred fifty-two thousand, four hundred forty-five".

Divisors: 1 3 5 15 331 993 1655 4965 6073 18219 30365 91095 2010163 6030489 10050815 30152445