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1042013 = 7148859
BaseRepresentation
bin11111110011001011101
31221221101002
43332121131
5231321023
634200045
711566640
oct3763135
91857332
101042013
11651975
12423025
132a639b
141d1a57
15158b28
hexfe65d

1042013 has 4 divisors (see below), whose sum is σ = 1190880. Its totient is φ = 893148.

The previous prime is 1042001. The next prime is 1042021. The reversal of 1042013 is 3102401.

It is a happy number.

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: 3102401 = 23134887.

It is a cyclic number.

It is not a de Polignac number, because 1042013 - 26 = 1041949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1041985 and 1042003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042043) 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, 74423 + ... + 74436.

It is an arithmetic number, because the mean of its divisors is an integer number (297720).

21042013 is an apocalyptic number.

It is an amenable number.

1042013 is a deficient number, since it is larger than the sum of its proper divisors (148867).

1042013 is an equidigital number, since it uses as much as digits as its factorization.

1042013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148866.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1042013 is about 1020.7903800487. The cubic root of 1042013 is about 101.3812665176.

Adding to 1042013 its reverse (3102401), we get a palindrome (4144414).

It can be divided in two parts, 10420 and 13, that multiplied together give a triangular number (135460 = T520).

The spelling of 1042013 in words is "one million, forty-two thousand, thirteen".

Divisors: 1 7 148859 1042013