Search a number
-
+
1202103013 = 3113865283
BaseRepresentation
bin100011110100110…
…1010001011100101
310002202222011022211
41013221222023211
54430214244023
6315141123421
741534464336
oct10751521345
93082864284
101202103013
11567612871
122966b9571
1316207c777
14b591a28d
1570803a0d
hex47a6a2e5

1202103013 has 4 divisors (see below), whose sum is σ = 1205968608. Its totient is φ = 1198237420.

The previous prime is 1202102977. The next prime is 1202103037. The reversal of 1202103013 is 3103012021.

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 1202103013 - 217 = 1201971941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202102984 and 1202103002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202103083) 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, 1932331 + ... + 1932952.

It is an arithmetic number, because the mean of its divisors is an integer number (301492152).

Almost surely, 21202103013 is an apocalyptic number.

It is an amenable number.

1202103013 is a deficient number, since it is larger than the sum of its proper divisors (3865595).

1202103013 is an equidigital number, since it uses as much as digits as its factorization.

1202103013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865594.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1202103013 is about 34671.3572419656. The cubic root of 1202103013 is about 1063.2789804494.

Adding to 1202103013 its reverse (3103012021), we get a palindrome (4305115034).

The spelling of 1202103013 in words is "one billion, two hundred two million, one hundred three thousand, thirteen".

Divisors: 1 311 3865283 1202103013