Search a number
-
+
164730925870 = 2573192938627
BaseRepresentation
bin1001100101101010111…
…0100111001100101110
3120202012101022002020121
42121122232213030232
510144332104111440
6203402031235154
714621120524000
oct2313256471456
9522171262217
10164730925870
1163953349855
1227b14078aba
13126c3437c44
147d89d72370
154441e9334a
hex265aba732e

164730925870 has 128 divisors (see below), whose sum is σ = 365275008000. Its totient is φ = 53317789056.

The previous prime is 164730925867. The next prime is 164730925913. The reversal of 164730925870 is 78529037461.

It is a super-4 number, since 4×1647309258704 (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19090497 + ... + 19099123.

It is an arithmetic number, because the mean of its divisors is an integer number (2853711000).

It is a 2-persistent number, because it is pandigital, and so is 2⋅164730925870 = 329461851740, but 3⋅164730925870 = 494192777610 is not.

Almost surely, 2164730925870 is an apocalyptic number.

164730925870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164730925870 is an abundant number, since it is smaller than the sum of its proper divisors (200544082130).

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

164730925870 is a wasteful number, since it uses less digits than its factorization.

164730925870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8967 (or 8953 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 164730925870 in words is "one hundred sixty-four billion, seven hundred thirty million, nine hundred twenty-five thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 14 19 35 38 49 70 95 98 133 190 245 266 293 343 490 586 665 686 931 1330 1465 1715 1862 2051 2930 3430 4102 4655 5567 6517 8627 9310 10255 11134 13034 14357 17254 20510 27835 28714 32585 38969 43135 55670 60389 65170 71785 77938 86270 100499 120778 143570 163913 194845 200998 272783 301945 327826 389690 422723 502495 545566 603890 819565 845446 1004990 1147391 1363915 1639130 1909481 2113615 2294782 2527711 2727830 2959061 3818962 4227230 5055422 5736955 5918122 8031737 9547405 11473910 12638555 14795305 16063474 17693977 19094810 25277110 29590610 35387954 40158685 48026509 56222159 80317370 88469885 96053018 112444318 123857839 176939770 240132545 247715678 281110795 336185563 480265090 562221590 619289195 672371126 867004873 1238578390 1680927815 1734009746 2353298941 3361855630 4335024365 4706597882 8670048730 11766494705 16473092587 23532989410 32946185174 82365462935 164730925870