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64070100 = 223252257277
BaseRepresentation
bin1111010001101…
…0000111010100
311110120002122200
43310122013110
5112400220400
610205124500
71405405203
oct364320724
9143502580
1064070100
11331908a6
1219559730
1310373703
14871b23a
155958b00
hex3d1a1d4

64070100 has 108 divisors (see below), whose sum is σ = 202333404. Its totient is φ = 16957440.

The previous prime is 64070081. The next prime is 64070101. The reversal of 64070100 is 107046.

64070100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 6084 + 64064016 = 78^2 + 8004^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64070101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 231162 + ... + 231438.

Almost surely, 264070100 is an apocalyptic number.

64070100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64070100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101166702).

64070100 is an abundant number, since it is smaller than the sum of its proper divisors (138263304).

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

64070100 is a wasteful number, since it uses less digits than its factorization.

64070100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 64070100 is about 8004.3800509471. The cubic root of 64070100 is about 400.1459883787.

Adding to 64070100 its reverse (107046), we get a palindrome (64177146).

The spelling of 64070100 in words is "sixty-four million, seventy thousand, one hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 257 277 300 450 514 554 771 831 900 1028 1108 1285 1385 1542 1662 2313 2493 2570 2770 3084 3324 3855 4155 4626 4986 5140 5540 6425 6925 7710 8310 9252 9972 11565 12465 12850 13850 15420 16620 19275 20775 23130 24930 25700 27700 38550 41550 46260 49860 57825 62325 71189 77100 83100 115650 124650 142378 213567 231300 249300 284756 355945 427134 640701 711890 854268 1067835 1281402 1423780 1779725 2135670 2562804 3203505 3559450 4271340 5339175 6407010 7118900 10678350 12814020 16017525 21356700 32035050 64070100