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30101201 = 132315477
BaseRepresentation
bin111001011010…
…0111011010001
32002122022002022
41302310323101
530201214301
62553101225
7513566414
oct162647321
962568068
1030101201
1115a9a529
12a0b7815
13630c080
143dd7b7b
152998d1b
hex1cb4ed1

30101201 has 4 divisors (see below), whose sum is σ = 32416692. Its totient is φ = 27785712.

The previous prime is 30101189. The next prime is 30101221. The reversal of 30101201 is 10210103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2265025 + 27836176 = 1505^2 + 5276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30101201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30101221) 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, 1157726 + ... + 1157751.

It is an arithmetic number, because the mean of its divisors is an integer number (8104173).

Almost surely, 230101201 is an apocalyptic number.

It is an amenable number.

30101201 is a deficient number, since it is larger than the sum of its proper divisors (2315491).

30101201 is a wasteful number, since it uses less digits than its factorization.

30101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315490.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 30101201 is about 5486.4561421741. The cubic root of 30101201 is about 311.0722529368.

Adding to 30101201 its reverse (10210103), we get a palindrome (40311304).

The spelling of 30101201 in words is "thirty million, one hundred one thousand, two hundred one".

Divisors: 1 13 2315477 30101201