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1015013 = 2344131
BaseRepresentation
bin11110111110011100101
31220120100002
43313303211
5224440023
633431045
711425136
oct3676345
91816302
101015013
1163365a
1240b485
13296ccc
141c5c8d
15150b28
hexf7ce5

1015013 has 4 divisors (see below), whose sum is σ = 1059168. Its totient is φ = 970860.

The previous prime is 1015009. The next prime is 1015039. The reversal of 1015013 is 3105101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3105101 = 17182653.

It is a cyclic number.

It is not a de Polignac number, because 1015013 - 22 = 1015009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1014985 and 1015003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015043) 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, 22043 + ... + 22088.

It is an arithmetic number, because the mean of its divisors is an integer number (264792).

21015013 is an apocalyptic number.

It is an amenable number.

1015013 is a deficient number, since it is larger than the sum of its proper divisors (44155).

1015013 is an equidigital number, since it uses as much as digits as its factorization.

1015013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44154.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 1015013 is about 1007.4785357515. The cubic root of 1015013 is about 100.4979496789.

The spelling of 1015013 in words is "one million, fifteen thousand, thirteen".

Divisors: 1 23 44131 1015013