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30003201 = 3223193751
BaseRepresentation
bin111001001110…
…1000000000001
32002110022122200
41302131000001
530140100301
62551023413
7513010614
oct162350001
962408580
1030003201
1115a32938
12a06ab69
1362a6597
143db017b
152979c86
hex1c9d001

30003201 has 24 divisors (see below), whose sum is σ = 45517056. Its totient is φ = 19008000.

The previous prime is 30003187. The next prime is 30003209. The reversal of 30003201 is 10230003.

It is a happy number.

It is not a de Polignac number, because 30003201 - 29 = 30002689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30003209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39576 + ... + 40326.

It is an arithmetic number, because the mean of its divisors is an integer number (1896544).

Almost surely, 230003201 is an apocalyptic number.

It is an amenable number.

30003201 is a deficient number, since it is larger than the sum of its proper divisors (15513855).

30003201 is a wasteful number, since it uses less digits than its factorization.

30003201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 30003201 is about 5477.5177772418. The cubic root of 30003201 is about 310.7343015926.

Adding to 30003201 its reverse (10230003), we get a palindrome (40233204).

The spelling of 30003201 in words is "thirty million, three thousand, two hundred one".

Divisors: 1 3 9 23 69 193 207 579 751 1737 2253 4439 6759 13317 17273 39951 51819 144943 155457 434829 1304487 3333689 10001067 30003201