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1293913 = 4330091
BaseRepresentation
bin100111011111001011001
32102201220201
410323321121
5312401123
643422201
713666225
oct4737131
92381821
101293913
11804155
12524961
13363c3a
14259785
151a85ad
hex13be59

1293913 has 4 divisors (see below), whose sum is σ = 1324048. Its totient is φ = 1263780.

The previous prime is 1293899. The next prime is 1293917. The reversal of 1293913 is 3193921.

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 1293913 - 29 = 1293401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1293917) 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 3 ways as a sum of consecutive naturals, for example, 15003 + ... + 15088.

It is an arithmetic number, because the mean of its divisors is an integer number (331012).

21293913 is an apocalyptic number.

It is an amenable number.

1293913 is a deficient number, since it is larger than the sum of its proper divisors (30135).

1293913 is an equidigital number, since it uses as much as digits as its factorization.

1293913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30134.

The product of its digits is 1458, while the sum is 28.

The square root of 1293913 is about 1137.5029670291. The cubic root of 1293913 is about 108.9686805059.

The spelling of 1293913 in words is "one million, two hundred ninety-three thousand, nine hundred thirteen".

Divisors: 1 43 30091 1293913