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30243061 = 43703327
BaseRepresentation
bin111001101011…
…1100011110101
32002220111200101
41303113203311
530220234221
63000114101
7515030122
oct163274365
962814611
1030243061
1116087072
12a165931
13635b804
144033749
1529c5d91
hex1cd78f5

30243061 has 4 divisors (see below), whose sum is σ = 30946432. Its totient is φ = 29539692.

The previous prime is 30243049. The next prime is 30243107. The reversal of 30243061 is 16034203.

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.

It is a cyclic number.

It is not a de Polignac number, because 30243061 - 25 = 30243029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243461) 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, 351621 + ... + 351706.

It is an arithmetic number, because the mean of its divisors is an integer number (7736608).

Almost surely, 230243061 is an apocalyptic number.

It is an amenable number.

30243061 is a deficient number, since it is larger than the sum of its proper divisors (703371).

30243061 is an equidigital number, since it uses as much as digits as its factorization.

30243061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703370.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30243061 is about 5499.3691456384. The cubic root of 30243061 is about 311.5601578096.

Adding to 30243061 its reverse (16034203), we get a palindrome (46277264).

The spelling of 30243061 in words is "thirty million, two hundred forty-three thousand, sixty-one".

Divisors: 1 43 703327 30243061