Search a number
-
+
312102232013 = 11136135779231
BaseRepresentation
bin1001000101010101011…
…11100001111111001101
31002211120221102010001102
410202222233201333031
520103141132411023
6355213333552445
731356120125525
oct4425257417715
91084527363042
10312102232013
111103a8634340
12505a24a5725
132357b208b40
141116a572685
1581b9dc5628
hex48aabe1fcd

312102232013 has 16 divisors (see below), whose sum is σ = 372676480512. Its totient is φ = 257610456000.

The previous prime is 312102231977. The next prime is 312102232033. The reversal of 312102232013 is 310232201213.

It is a cyclic number.

It is not a de Polignac number, because 312102232013 - 210 = 312102230989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312102232033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17880893 + ... + 17898338.

It is an arithmetic number, because the mean of its divisors is an integer number (23292280032).

Almost surely, 2312102232013 is an apocalyptic number.

It is an amenable number.

312102232013 is a deficient number, since it is larger than the sum of its proper divisors (60574248499).

312102232013 is a wasteful number, since it uses less digits than its factorization.

312102232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35779316.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312102232013 its reverse (310232201213), we get a palindrome (622334433226).

The spelling of 312102232013 in words is "three hundred twelve billion, one hundred two million, two hundred thirty-two thousand, thirteen".

Divisors: 1 11 13 61 143 671 793 8723 35779231 393571541 465130003 2182533091 5116430033 24007864001 28372930183 312102232013