Search a number
-
+
80644052300 = 225274721111617
BaseRepresentation
bin100101100011011000…
…0101001010101001100
321201011020000022122212
41023012300221111030
52310124334133200
6101014121525552
75553302064050
oct1130660512514
9251136008585
1080644052300
1131223513109
12137676438b8
1377b26b5856
143c9050bc60
15216ecde035
hex12c6c2954c

80644052300 has 144 divisors (see below), whose sum is σ = 205238197248. Its totient is φ = 26930534400.

The previous prime is 80644052287. The next prime is 80644052303. The reversal of 80644052300 is 325044608.

It is not an unprimeable number, because it can be changed into a prime (80644052303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6936092 + ... + 6947708.

Almost surely, 280644052300 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 80644052300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102619098624).

80644052300 is an abundant number, since it is smaller than the sum of its proper divisors (124594144948).

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

80644052300 is a wasteful number, since it uses less digits than its factorization.

80644052300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11896 (or 11889 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 80644052300 its reverse (325044608), we get a palindrome (80969096908).

The spelling of 80644052300 in words is "eighty billion, six hundred forty-four million, fifty-two thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 47 50 70 94 100 140 175 188 211 235 329 350 422 470 658 700 844 940 1055 1175 1316 1477 1645 2110 2350 2954 3290 4220 4700 5275 5908 6580 7385 8225 9917 10550 11617 14770 16450 19834 21100 23234 29540 32900 36925 39668 46468 49585 58085 69419 73850 81319 99170 116170 138838 147700 162638 198340 232340 247925 277676 290425 325276 347095 406595 495850 545999 580850 694190 813190 991700 1091998 1161700 1388380 1626380 1735475 2032975 2183996 2451187 2729995 3470950 3821993 4065950 4902374 5459990 6941900 7643986 8131900 9804748 10919980 12255935 13649975 15287972 17158309 19109965 24511870 27299950 34316618 38219930 49023740 54599900 61279675 68633236 76439860 85791545 95549825 115205789 122559350 171583090 191099650 230411578 245118700 343166180 382199300 428957725 460823156 576028945 806440523 857915450 1152057890 1612881046 1715830900 2304115780 2880144725 3225762092 4032202615 5760289450 8064405230 11520578900 16128810460 20161013075 40322026150 80644052300