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30302001 = 323790997
BaseRepresentation
bin111001110010…
…1111100110001
32010000111112100
41303211330301
530224131001
63001251013
7515364012
oct163457461
963014470
1030302001
1116117384
12a193a69
13637c5a2
14404b009
1529d8586
hex1ce5f31

30302001 has 12 divisors (see below), whose sum is σ = 44953012. Its totient is φ = 19655136.

The previous prime is 30301969. The next prime is 30302009. The reversal of 30302001 is 10020303.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12787776 + 17514225 = 3576^2 + 4185^2 .

It is not a de Polignac number, because 30302001 - 25 = 30301969 is a prime.

It is a super-2 number, since 2×303020012 = 1836422529208002, which contains 22 as substring.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30302009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45166 + ... + 45831.

Almost surely, 230302001 is an apocalyptic number.

It is an amenable number.

30302001 is a deficient number, since it is larger than the sum of its proper divisors (14651011).

30302001 is a wasteful number, since it uses less digits than its factorization.

30302001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91040 (or 91037 counting only the distinct ones).

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

The square root of 30302001 is about 5504.7253337474. The cubic root of 30302001 is about 311.7624239239.

Adding to 30302001 its reverse (10020303), we get a palindrome (40322304).

The spelling of 30302001 in words is "thirty million, three hundred two thousand, one".

Divisors: 1 3 9 37 111 333 90997 272991 818973 3366889 10100667 30302001