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30020301 = 34735077
BaseRepresentation
bin111001010000…
…1001011001101
32002111012010000
41302201023031
530141122201
62551234513
7513111513
oct162411315
962435100
1030020301
1115a44773
12a078a39
1362b12bc
143db64b3
15297ed86
hex1ca12cd

30020301 has 20 divisors (see below), whose sum is σ = 45468412. Its totient is φ = 19735488.

The previous prime is 30020299. The next prime is 30020327. The reversal of 30020301 is 10302003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24502500 + 5517801 = 4950^2 + 2349^2 .

It is not a de Polignac number, because 30020301 - 21 = 30020299 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020381) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3375 + ... + 8451.

Almost surely, 230020301 is an apocalyptic number.

It is an amenable number.

30020301 is a deficient number, since it is larger than the sum of its proper divisors (15448111).

30020301 is an equidigital number, since it uses as much as digits as its factorization.

30020301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162 (or 5153 counting only the distinct ones).

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

The square root of 30020301 is about 5479.0784809126. The cubic root of 30020301 is about 310.7933235995.

Adding to 30020301 its reverse (10302003), we get a palindrome (40322304).

The spelling of 30020301 in words is "thirty million, twenty thousand, three hundred one".

Divisors: 1 3 9 27 73 81 219 657 1971 5077 5913 15231 45693 137079 370621 411237 1111863 3335589 10006767 30020301