Search a number
-
+
30002413 = 74286059
BaseRepresentation
bin111001001110…
…0110011101101
32002110021120111
41302130303231
530140034123
62551020021
7513005410
oct162346355
962407514
1030002413
1115a32291
12a06a611
1362a610c
143dadb77
15297990d
hex1c9cced

30002413 has 4 divisors (see below), whose sum is σ = 34288480. Its totient is φ = 25716348.

The previous prime is 30002411. The next prime is 30002431. The reversal of 30002413 is 31420003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31420003 = 73430411.

It is not a de Polignac number, because 30002413 - 21 = 30002411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30002393 and 30002402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002411) 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, 2143023 + ... + 2143036.

It is an arithmetic number, because the mean of its divisors is an integer number (8572120).

Almost surely, 230002413 is an apocalyptic number.

It is an amenable number.

30002413 is a deficient number, since it is larger than the sum of its proper divisors (4286067).

30002413 is an equidigital number, since it uses as much as digits as its factorization.

30002413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286066.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30002413 is about 5477.4458463777. The cubic root of 30002413 is about 310.7315812076.

Adding to 30002413 its reverse (31420003), we get a palindrome (61422416).

The spelling of 30002413 in words is "thirty million, two thousand, four hundred thirteen".

Divisors: 1 7 4286059 30002413