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30151441 = 411973733
BaseRepresentation
bin111001100000…
…1001100010001
32002201212000001
41303001030101
530204321231
62554130001
7514166035
oct163011421
962655001
1030151441
1116024251
12a120901
136328bb8
14400c1c5
1529a8b61
hex1cc1311

30151441 has 8 divisors (see below), whose sum is σ = 31051944. Its totient is φ = 29258880.

The previous prime is 30151439. The next prime is 30151447. The reversal of 30151441 is 14415103.

It can be written as a sum of positive squares in 4 ways, for example, as 5856400 + 24295041 = 2420^2 + 4929^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30151441 - 21 = 30151439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30151447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6211 + ... + 9943.

It is an arithmetic number, because the mean of its divisors is an integer number (3881493).

Almost surely, 230151441 is an apocalyptic number.

It is an amenable number.

30151441 is a deficient number, since it is larger than the sum of its proper divisors (900503).

30151441 is a wasteful number, since it uses less digits than its factorization.

30151441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 30151441 is about 5491.0327808164. The cubic root of 30151441 is about 311.2452203800.

Adding to 30151441 its reverse (14415103), we get a palindrome (44566544).

The spelling of 30151441 in words is "thirty million, one hundred fifty-one thousand, four hundred forty-one".

Divisors: 1 41 197 3733 8077 153053 735401 30151441