Search a number
-
+
8375139472 = 2471996132
BaseRepresentation
bin1111100110011001…
…00111110010010000
3210121200022011111211
413303030213302100
5114123013430342
63503020145504
7414354340150
oct76314476220
923550264454
108375139472
113608603277
121758998294
13a3618bb3b
1459643a760
153403ecc17
hex1f3327c90

8375139472 has 60 divisors (see below), whose sum is σ = 18668596800. Its totient is φ = 3565482624.

The previous prime is 8375139463. The next prime is 8375139491. The reversal of 8375139472 is 2749315738.

It is a super-2 number, since 2×83751394722 (a number of 21 digits) contains 22 as substring.

Its product of digits (1270080) is a multiple of the sum of its prime factors (1440).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13662238 + ... + 13662850.

It is an arithmetic number, because the mean of its divisors is an integer number (311143280).

Almost surely, 28375139472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8375139472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9334298400).

8375139472 is an abundant number, since it is smaller than the sum of its proper divisors (10293457328).

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

8375139472 is an equidigital number, since it uses as much as digits as its factorization.

8375139472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 821 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 8375139472 is about 91515.7881023815. The cubic root of 8375139472 is about 2030.7853232396.

The spelling of 8375139472 in words is "eight billion, three hundred seventy-five million, one hundred thirty-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 199 398 613 796 1226 1393 1592 2452 2786 3184 4291 4904 5572 8582 9808 11144 17164 22288 34328 68656 121987 243974 375769 487948 751538 853909 975896 1503076 1707818 1951792 2630383 3006152 3415636 5260766 6012304 6831272 10521532 13662544 21043064 42086128 74778031 149556062 299112124 523446217 598224248 1046892434 1196448496 2093784868 4187569736 8375139472