Search a number
-
+
185486868970 = 251329174728163
BaseRepresentation
bin1010110010111111100…
…0010000000111101010
3122201202220021020110221
42230233320100013222
511014334114301340
6221113403200254
716254352241434
oct2545770200752
9581686236427
10185486868970
1171734558037
122bb4721608a
131465060b490
148d987d5654
154c5928244a
hex2b2fe101ea

185486868970 has 64 divisors (see below), whose sum is σ = 372183880320. Its totient is φ = 66085625088.

The previous prime is 185486868937. The next prime is 185486868989. The reversal of 185486868970 is 79868684581.

185486868970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 185486868970.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6572109 + ... + 6600271.

It is an arithmetic number, because the mean of its divisors is an integer number (5815373130).

Almost surely, 2185486868970 is an apocalyptic number.

185486868970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

185486868970 is an abundant number, since it is smaller than the sum of its proper divisors (186697011350).

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

185486868970 is a wasteful number, since it uses less digits than its factorization.

185486868970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29959.

The product of its (nonzero) digits is 185794560, while the sum is 70.

The spelling of 185486868970 in words is "one hundred eighty-five billion, four hundred eighty-six million, eight hundred sixty-eight thousand, nine hundred seventy".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 290 377 754 1747 1885 3494 3770 8735 17470 22711 28163 45422 50663 56326 101326 113555 140815 227110 253315 281630 366119 506630 658619 732238 816727 1317238 1633454 1830595 3293095 3661190 4083635 6586190 8167270 10617451 21234902 49200761 53087255 98401522 106174510 246003805 492007610 639609893 1279219786 1426822069 2853644138 3198049465 6396098930 7134110345 14268220690 18548686897 37097373794 92743434485 185486868970