Search a number
-
+
313012103303213 = 8531361269621161
BaseRepresentation
bin100011100101011101100111…
…1001110100101000000101101
31112001021122221122221121211222
41013022323033032211000231
5312011342241421200323
63025415435232353125
7122634243500565656
oct10712731716450055
91461248848847758
10313012103303213
119080a762119046
122b133a140a57a5
1310586bb7753bc2
145741c1c08a52d
15262c26a86e9c8
hex11caecf3a502d

313012103303213 has 8 divisors (see below), whose sum is σ = 313609315337976. Its totient is φ = 312415430515200.

The previous prime is 313012103303203. The next prime is 313012103303233. The reversal of 313012103303213 is 312303301210313.

It can be written as a sum of positive squares in 4 ways, for example, as 32787282136324 + 280224821166889 = 5726018^2 + 16739917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313012103303213 - 24 = 313012103303197 is a prime.

It is a super-2 number, since 2×3130121033032132 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313012103303203) 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, 133649648 + ... + 135971513.

It is an arithmetic number, because the mean of its divisors is an integer number (39201164417247).

Almost surely, 2313012103303213 is an apocalyptic number.

It is an amenable number.

313012103303213 is a deficient number, since it is larger than the sum of its proper divisors (597212034763).

313012103303213 is a wasteful number, since it uses less digits than its factorization.

313012103303213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269623375.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 313012103303213 its reverse (312303301210313), we get a palindrome (625315404513526).

The spelling of 313012103303213 in words is "three hundred thirteen trillion, twelve billion, one hundred three million, three hundred three thousand, two hundred thirteen".

Divisors: 1 853 1361 1160933 269621161 229986850333 366954400121 313012103303213