Search a number
-
+
13025806500 = 2235371240553
BaseRepresentation
bin11000010000110011…
…00000100010100100
31020121210100112022210
430020121200202210
5203134101302000
65552312123420
7640535346150
oct141031404244
936553315283
1013025806500
115584801243
122636396570
1312c7839015
148b7d66060
1551384d350
hex3086608a4

13025806500 has 96 divisors (see below), whose sum is σ = 43349918976. Its totient is φ = 2977324800.

The previous prime is 13025806457. The next prime is 13025806567. The reversal of 13025806500 is 560852031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 609777 + ... + 630776.

It is an arithmetic number, because the mean of its divisors is an integer number (451561656).

Almost surely, 213025806500 is an apocalyptic number.

13025806500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13025806500 is an abundant number, since it is smaller than the sum of its proper divisors (30324112476).

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

13025806500 is a wasteful number, since it uses less digits than its factorization.

13025806500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240582 (or 1240570 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 13025806500 in words is "thirteen billion, twenty-five million, eight hundred six thousand, five hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 125 140 150 175 210 250 300 350 375 420 500 525 700 750 875 1050 1500 1750 2100 2625 3500 5250 10500 1240553 2481106 3721659 4962212 6202765 7443318 8683871 12405530 14886636 17367742 18608295 24811060 26051613 31013825 34735484 37216590 43419355 52103226 62027650 74433180 86838710 93041475 104206452 124055300 130258065 155069125 173677420 186082950 217096775 260516130 310138250 372165900 434193550 465207375 521032260 620276500 651290325 868387100 930414750 1085483875 1302580650 1860829500 2170967750 2605161300 3256451625 4341935500 6512903250 13025806500