Search a number
-
+
8312027420 = 225415601371
BaseRepresentation
bin1111011110110111…
…10111100100011100
3210110021112202001102
413233123313210130
5114010334334140
63452443332232
7412660032044
oct75733674434
923407482042
108312027420
113585a17254
12173b821078
13a26092528
1458bccc724
15339ad2e15
hex1ef6f791c

8312027420 has 12 divisors (see below), whose sum is σ = 17455257624. Its totient is φ = 3324810960.

The previous prime is 8312027417. The next prime is 8312027443. The reversal of 8312027420 is 247202138.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207800666 + ... + 207800705.

It is an arithmetic number, because the mean of its divisors is an integer number (1454604802).

Almost surely, 28312027420 is an apocalyptic number.

It is an amenable number.

8312027420 is an abundant number, since it is smaller than the sum of its proper divisors (9143230204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8312027420 is a wasteful number, since it uses less digits than its factorization.

8312027420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415601380 (or 415601378 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 8312027420 is about 91170.3209383405. The cubic root of 8312027420 is about 2025.6713656659.

Adding to 8312027420 its reverse (247202138), we get a palindrome (8559229558).

The spelling of 8312027420 in words is "eight billion, three hundred twelve million, twenty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 415601371 831202742 1662405484 2078006855 4156013710 8312027420