Search a number
-
+
30268915 = 56053783
BaseRepresentation
bin111001101110…
…1110111110011
32002221211010221
41303131313303
530222101130
63000433511
7515165365
oct163356763
962854127
1030268915
11160a4536
12a178897
13636a501
14403cd35
1529cd87a
hex1cdddf3

30268915 has 4 divisors (see below), whose sum is σ = 36322704. Its totient is φ = 24215128.

The previous prime is 30268879. The next prime is 30268921. The reversal of 30268915 is 51986203.

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 30268915 - 27 = 30268787 is a prime.

It is a Duffinian 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, 3026887 + ... + 3026896.

It is an arithmetic number, because the mean of its divisors is an integer number (9080676).

Almost surely, 230268915 is an apocalyptic number.

30268915 is a deficient number, since it is larger than the sum of its proper divisors (6053789).

30268915 is an equidigital number, since it uses as much as digits as its factorization.

30268915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053788.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 30268915 is about 5501.7192767352. The cubic root of 30268915 is about 311.6489140596.

The spelling of 30268915 in words is "thirty million, two hundred sixty-eight thousand, nine hundred fifteen".

Divisors: 1 5 6053783 30268915