Search a number
-
+
64105176100 = 22527236172
BaseRepresentation
bin111011101100111101…
…110101110000100100
320010110121012100200111
4323230331311300210
52022241411113400
645241032222404
74426405002100
oct735475656044
9203417170614
1064105176100
1125206778689
121051083aa04
1360780b5384
143161b84900
151a02d513ba
hexeecf75c24

64105176100 has 81 divisors (see below), whose sum is σ = 161864531283. Its totient is φ = 21972840960.

The previous prime is 64105176089. The next prime is 64105176101. The reversal of 64105176100 is 167150146.

The square root of 64105176100 is 253190.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 36610230244 + 27494945856 = 191338^2 + 165816^2 .

It is a super-2 number, since 2×641051761002 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64105176101) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 17721492 + ... + 17725108.

Almost surely, 264105176100 is an apocalyptic number.

64105176100 is the 253190-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64105176100

64105176100 is an abundant number, since it is smaller than the sum of its proper divisors (97759355183).

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

64105176100 is an equidigital number, since it uses as much as digits as its factorization.

64105176100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7262 (or 3631 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 64105176100 in words is "sixty-four billion, one hundred five million, one hundred seventy-six thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 140 175 196 245 350 490 700 980 1225 2450 3617 4900 7234 14468 18085 25319 36170 50638 72340 90425 101276 126595 177233 180850 253190 354466 361700 506380 632975 708932 886165 1265950 1772330 2531900 3544660 4430825 8861650 13082689 17723300 26165378 52330756 65413445 91578823 130826890 183157646 261653780 327067225 366315292 457894115 641051761 654134450 915788230 1282103522 1308268900 1831576460 2289470575 2564207044 3205258805 4578941150 6410517610 9157882300 12821035220 16026294025 32052588050 64105176100