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25180980006 = 23713172712883
BaseRepresentation
bin10111011100111001…
…110100001100100110
32101222220110022201010
4113130321310030212
5403032312330011
615322403443050
71551002540610
oct273471641446
971886408633
1025180980006
11a752008a86
124a69086486
1324b3b91490
14130c417db0
159c5a211a6
hex5dce74326

25180980006 has 64 divisors (see below), whose sum is σ = 65630089728. Its totient is φ = 6250480128.

The previous prime is 25180979977. The next prime is 25180980029. The reversal of 25180980006 is 60008908152.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 1347160 + ... + 1365723.

It is an arithmetic number, because the mean of its divisors is an integer number (1025470152).

Almost surely, 225180980006 is an apocalyptic number.

25180980006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25180980006 is an abundant number, since it is smaller than the sum of its proper divisors (40449109722).

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

25180980006 is a wasteful number, since it uses less digits than its factorization.

25180980006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712925.

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 25180980006 in words is "twenty-five billion, one hundred eighty million, nine hundred eighty thousand, six".

Divisors: 1 2 3 6 7 13 14 17 21 26 34 39 42 51 78 91 102 119 182 221 238 273 357 442 546 663 714 1326 1547 3094 4641 9282 2712883 5425766 8138649 16277298 18990181 35267479 37980362 46119011 56970543 70534958 92238022 105802437 113941086 138357033 211604874 246872353 276714066 322833077 493744706 599547143 645666154 740617059 968499231 1199094286 1481234118 1798641429 1936998462 3597282858 4196830001 8393660002 12590490003 25180980006