Search a number
-
+
7671068320 = 2551492331381
BaseRepresentation
bin1110010010011101…
…10011011010100000
3201210121110122110111
413021032303122200
5111202243141240
63305105341104
7361045001446
oct71116633240
921717418414
107671068320
113287133193
1215a1037794
139533556a6
1452ab22b96
152ed6c41ea
hex1c93b36a0

7671068320 has 96 divisors (see below), whose sum is σ = 18336099600. Its totient is φ = 3032555520.

The previous prime is 7671068311. The next prime is 7671068329. The reversal of 7671068320 is 238601767.

It is an interprime number because it is at equal distance from previous prime (7671068311) and next prime (7671068329).

It can be written as a sum of positive squares in 8 ways, for example, as 734843664 + 6936224656 = 27108^2 + 83284^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (7671068329) 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, 5554030 + ... + 5555410.

Almost surely, 27671068320 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 7671068320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9168049800).

7671068320 is an abundant number, since it is smaller than the sum of its proper divisors (10665031280).

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

7671068320 is a wasteful number, since it uses less digits than its factorization.

7671068320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 7671068320 is about 87584.6351822053. The cubic root of 7671068320 is about 1972.2045219045.

The spelling of 7671068320 in words is "seven billion, six hundred seventy-one million, sixty-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 149 160 233 298 466 596 745 932 1165 1192 1381 1490 1864 2330 2384 2762 2980 3728 4660 4768 5524 5960 6905 7456 9320 11048 11920 13810 18640 22096 23840 27620 34717 37280 44192 55240 69434 110480 138868 173585 205769 220960 277736 321773 347170 411538 555472 643546 694340 823076 1028845 1110944 1287092 1388680 1608865 1646152 2057690 2574184 2777360 3217730 3292304 4115380 5148368 5554720 6435460 6584608 8230760 10296736 12870920 16461520 25741840 32923040 47944177 51483680 95888354 191776708 239720885 383553416 479441770 767106832 958883540 1534213664 1917767080 3835534160 7671068320