Search a number
-
+
4720911390 = 23351317611297
BaseRepresentation
bin1000110010110001…
…10110010000011110
3110012000020010222000
410121120312100132
534132023131030
62100241303130
7224663041026
oct43130662036
913160203860
104720911390
112002916668
12ab9034aa6
135a30a2cc0
1432adb2a86
151c96c8860
hex11963641e

4720911390 has 256 divisors, whose sum is σ = 14601565440. Its totient is φ = 1074954240.

The previous prime is 4720911319. The next prime is 4720911409. The reversal of 4720911390 is 931190274.

4720911390 is a `hidden beast` number, since 472 + 0 + 91 + 13 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3639222 + ... + 3640518.

It is an arithmetic number, because the mean of its divisors is an integer number (57037365).

Almost surely, 24720911390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4720911390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7300782720).

4720911390 is an abundant number, since it is smaller than the sum of its proper divisors (9880654050).

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

4720911390 is a wasteful number, since it uses less digits than its factorization.

4720911390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 4720911390 is about 68708.8887262776. Note that the first 3 decimals coincide. The cubic root of 4720911390 is about 1677.5492646870.

The spelling of 4720911390 in words is "four billion, seven hundred twenty million, nine hundred eleven thousand, three hundred ninety".