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806130072 = 2332112175443
BaseRepresentation
bin110000000011001…
…001000110011000
32002011212122120100
4300003021012120
53122332130242
6211554055400
725655664306
oct6003110630
92064778510
10806130072
11384048500
121a5b7a560
13cb01b157
14790c3276
154ab8854c
hex300c9198

806130072 has 144 divisors (see below), whose sum is σ = 2541422520. Its totient is φ = 229870080.

The previous prime is 806130071. The next prime is 806130079. The reversal of 806130072 is 270031608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806130071) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 145383 + ... + 150825.

Almost surely, 2806130072 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 806130072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270711260).

806130072 is an abundant number, since it is smaller than the sum of its proper divisors (1735292448).

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

806130072 is a wasteful number, since it uses less digits than its factorization.

806130072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494 (or 5476 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 806130072 is about 28392.4298361377. The cubic root of 806130072 is about 930.6828422471.

The spelling of 806130072 in words is "eight hundred six million, one hundred thirty thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 11 12 17 18 22 24 33 34 36 44 51 66 68 72 88 99 102 121 132 136 153 187 198 204 242 264 306 363 374 396 408 484 561 612 726 748 792 968 1089 1122 1224 1452 1496 1683 2057 2178 2244 2904 3366 4114 4356 4488 5443 6171 6732 8228 8712 10886 12342 13464 16329 16456 18513 21772 24684 32658 37026 43544 48987 49368 59873 65316 74052 92531 97974 119746 130632 148104 179619 185062 195948 239492 277593 359238 370124 391896 478984 538857 555186 658603 718476 740248 832779 1017841 1077714 1110372 1317206 1436952 1665558 1975809 2035682 2155428 2220744 2634412 3053523 3331116 3951618 4071364 4310856 5268824 5927427 6107046 6662232 7903236 8142728 9160569 11196251 11854854 12214092 15806472 18321138 22392502 23709708 24428184 33588753 36642276 44785004 47419416 67177506 73284552 89570008 100766259 134355012 201532518 268710024 403065036 806130072