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131853030645 = 3571255743149
BaseRepresentation
bin111101011001100001…
…1011001010011110101
3110121100001201221210110
41322303003121103311
54130013333440040
6140323352013233
712345304161030
oct1726303312365
9417301657713
10131853030645
1150a11664516
1221679391219
13c583a7157b
14654b628017
15366a894980
hex1eb30d94f5

131853030645 has 16 divisors (see below), whose sum is σ = 241102684800. Its totient is φ = 60275671104.

The previous prime is 131853030637. The next prime is 131853030689. The reversal of 131853030645 is 546030358131.

It is not a de Polignac number, because 131853030645 - 23 = 131853030637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627871470 + ... + 627871679.

It is an arithmetic number, because the mean of its divisors is an integer number (15068917800).

Almost surely, 2131853030645 is an apocalyptic number.

131853030645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131853030645 is a deficient number, since it is larger than the sum of its proper divisors (109249654155).

131853030645 is a wasteful number, since it uses less digits than its factorization.

131853030645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255743164.

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 131853030645 its reverse (546030358131), we get a palindrome (677883388776).

The spelling of 131853030645 in words is "one hundred thirty-one billion, eight hundred fifty-three million, thirty thousand, six hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 1255743149 3767229447 6278715745 8790202043 18836147235 26370606129 43951010215 131853030645