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30210413 = 101299113
BaseRepresentation
bin111001100111…
…1100101101101
32002211211220012
41303033211231
530213213123
62555303005
7514533002
oct163174555
962754805
1030210413
1116064592
12a14aa65
1363499ac
1440258a9
1529bb378
hex1ccf96d

30210413 has 4 divisors (see below), whose sum is σ = 30509628. Its totient is φ = 29911200.

The previous prime is 30210409. The next prime is 30210457. The reversal of 30210413 is 31401203.

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 19333609 + 10876804 = 4397^2 + 3298^2 .

It is a cyclic number.

It is not a de Polignac number, because 30210413 - 22 = 30210409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30210403) 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, 149456 + ... + 149657.

It is an arithmetic number, because the mean of its divisors is an integer number (7627407).

Almost surely, 230210413 is an apocalyptic number.

It is an amenable number.

30210413 is a deficient number, since it is larger than the sum of its proper divisors (299215).

30210413 is a wasteful number, since it uses less digits than its factorization.

30210413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299214.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30210413 is about 5496.4000036387. The cubic root of 30210413 is about 311.4480055988.

Adding to 30210413 its reverse (31401203), we get a palindrome (61611616).

The spelling of 30210413 in words is "thirty million, two hundred ten thousand, four hundred thirteen".

Divisors: 1 101 299113 30210413