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30161024 = 271012333
BaseRepresentation
bin111001100001…
…1100010000000
32002202100010222
41303003202000
530210123044
62554242212
7514236005
oct163034200
962670128
1030161024
1116030473
12a126368
13633037a
1440118ac
1529ab8ee
hex1cc3880

30161024 has 32 divisors (see below), whose sum is σ = 60707340. Its totient is φ = 14924800.

The previous prime is 30161011. The next prime is 30161029. The reversal of 30161024 is 42016103.

It can be written as a sum of positive squares in 2 ways, for example, as 28815424 + 1345600 = 5368^2 + 1160^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 30160993 and 30161011.

It is not an unprimeable number, because it can be changed into a prime (30161029) 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, 11762 + ... + 14094.

Almost surely, 230161024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30161024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30353670).

30161024 is an abundant number, since it is smaller than the sum of its proper divisors (30546316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30161024 is a wasteful number, since it uses less digits than its factorization.

30161024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 2436 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30161024 is about 5491.9053160083. The cubic root of 30161024 is about 311.2781911316.

Adding to 30161024 its reverse (42016103), we get a palindrome (72177127).

The spelling of 30161024 in words is "thirty million, one hundred sixty-one thousand, twenty-four".

Divisors: 1 2 4 8 16 32 64 101 128 202 404 808 1616 2333 3232 4666 6464 9332 12928 18664 37328 74656 149312 235633 298624 471266 942532 1885064 3770128 7540256 15080512 30161024