Search a number
-
+
30003741 = 323333749
BaseRepresentation
bin111001001110…
…1001000011101
32002110100101200
41302131020131
530140104431
62551030113
7513012315
oct162351035
962410350
1030003741
1115a33289
12a06b339
1362a68c1
143db0445
152979ee6
hex1c9d21d

30003741 has 6 divisors (see below), whose sum is σ = 43338750. Its totient is φ = 20002488.

The previous prime is 30003731. The next prime is 30003761. The reversal of 30003741 is 14730003.

It can be written as a sum of positive squares in only one way, i.e., 16892100 + 13111641 = 4110^2 + 3621^2 .

It is not a de Polignac number, because 30003741 - 25 = 30003709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1666866 + ... + 1666883.

It is an arithmetic number, because the mean of its divisors is an integer number (7223125).

Almost surely, 230003741 is an apocalyptic number.

It is an amenable number.

30003741 is a deficient number, since it is larger than the sum of its proper divisors (13335009).

30003741 is a wasteful number, since it uses less digits than its factorization.

30003741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333755 (or 3333752 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 30003741 is about 5477.5670694205. The cubic root of 30003741 is about 310.7361657883.

Adding to 30003741 its reverse (14730003), we get a palindrome (44733744).

The spelling of 30003741 in words is "thirty million, three thousand, seven hundred forty-one".

Divisors: 1 3 9 3333749 10001247 30003741