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1202101013 = 2694468777
BaseRepresentation
bin100011110100110…
…1001101100010101
310002202222001120202
41013221221230111
54430214213023
6315141110245
741534455451
oct10751515425
93082861522
101202101013
11567611313
122966b8385
1316207b899
14b5919661
1570803128
hex47a69b15

1202101013 has 4 divisors (see below), whose sum is σ = 1206570060. Its totient is φ = 1197631968.

The previous prime is 1202101007. The next prime is 1202101037. The reversal of 1202101013 is 3101012021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 349577809 + 852523204 = 18697^2 + 29198^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202101013 - 216 = 1202035477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202100985 and 1202101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202101513) 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, 2234120 + ... + 2234657.

It is an arithmetic number, because the mean of its divisors is an integer number (301642515).

Almost surely, 21202101013 is an apocalyptic number.

It is an amenable number.

1202101013 is a deficient number, since it is larger than the sum of its proper divisors (4469047).

1202101013 is an equidigital number, since it uses as much as digits as its factorization.

1202101013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469046.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1202101013 is about 34671.3283997023. The cubic root of 1202101013 is about 1063.2783907719.

Adding to 1202101013 its reverse (3101012021), we get a palindrome (4303113034).

The spelling of 1202101013 in words is "one billion, two hundred two million, one hundred one thousand, thirteen".

Divisors: 1 269 4468777 1202101013