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30243415 = 56048683
BaseRepresentation
bin111001101011…
…1101001010111
32002220112011111
41303113221113
530220242130
63000115451
7515031136
oct163275127
962815144
1030243415
1116087364
12a165b87
13635ba17
14403391d
1529c602a
hex1cd7a57

30243415 has 4 divisors (see below), whose sum is σ = 36292104. Its totient is φ = 24194728.

The previous prime is 30243407. The next prime is 30243431. The reversal of 30243415 is 51434203.

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

It is a cyclic number.

It is not a de Polignac number, because 30243415 - 23 = 30243407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3024337 + ... + 3024346.

It is an arithmetic number, because the mean of its divisors is an integer number (9073026).

Almost surely, 230243415 is an apocalyptic number.

30243415 is a deficient number, since it is larger than the sum of its proper divisors (6048689).

30243415 is an equidigital number, since it uses as much as digits as its factorization.

30243415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048688.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30243415 is about 5499.4013310541. The cubic root of 30243415 is about 311.5613734258.

Adding to 30243415 its reverse (51434203), we get a palindrome (81677618).

The spelling of 30243415 in words is "thirty million, two hundred forty-three thousand, four hundred fifteen".

Divisors: 1 5 6048683 30243415