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1202013 = 3344519
BaseRepresentation
bin100100101011101011101
32021001212000
410211131131
5301431023
641432513
713134261
oct4453535
92231760
101202013
117510aa
1249b739
13331167
142340a1
1518b243
hex12575d

1202013 has 8 divisors (see below), whose sum is σ = 1780800. Its totient is φ = 801324.

The previous prime is 1202009. The next prime is 1202017. The reversal of 1202013 is 3102021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1202009) and next prime (1202017).

It is not a de Polignac number, because 1202013 - 22 = 1202009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1201986 and 1202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22233 + ... + 22286.

It is an arithmetic number, because the mean of its divisors is an integer number (222600).

21202013 is an apocalyptic number.

It is an amenable number.

1202013 is a deficient number, since it is larger than the sum of its proper divisors (578787).

1202013 is an equidigital number, since it uses as much as digits as its factorization.

1202013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44528 (or 44522 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1202013 is about 1096.3635345997. The cubic root of 1202013 is about 106.3252440483.

Adding to 1202013 its product of nonzero digits (12), we get a triangular number (1202025 = T1550).

Adding to 1202013 its reverse (3102021), we get a palindrome (4304034).

The spelling of 1202013 in words is "one million, two hundred two thousand, thirteen".

Divisors: 1 3 9 27 44519 133557 400671 1202013