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131066124650 = 25247166733457
BaseRepresentation
bin111101000010000100…
…1100101100101101010
3110112022020000222200222
41322010021211211222
54121410411442100
6140113321530042
712316640451326
oct1720411454552
9415266028628
10131066124650
115064845738a
1221499943922
13c489a24616
1464b4d0a986
153621757485
hex1e8426596a

131066124650 has 48 divisors (see below), whose sum is σ = 249126662016. Its totient is φ = 51278680320.

The previous prime is 131066124619. The next prime is 131066124677. The reversal of 131066124650 is 56421660131.

It is a self number, because there is not a number n which added to its sum of digits gives 131066124650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3900722 + ... + 3934178.

It is an arithmetic number, because the mean of its divisors is an integer number (5190138792).

Almost surely, 2131066124650 is an apocalyptic number.

131066124650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131066124650 is a deficient number, since it is larger than the sum of its proper divisors (118060537366).

131066124650 is a wasteful number, since it uses less digits than its factorization.

131066124650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35183 (or 35178 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 131066124650 its reverse (56421660131), we get a palindrome (187487784781).

The spelling of 131066124650 in words is "one hundred thirty-one billion, sixty-six million, one hundred twenty-four thousand, six hundred fifty".

Divisors: 1 2 5 10 25 47 50 94 235 470 1175 1667 2350 3334 8335 16670 33457 41675 66914 78349 83350 156698 167285 334570 391745 783490 836425 1572479 1672850 1958725 3144958 3917450 7862395 15724790 39311975 55772819 78623950 111545638 278864095 557728190 1394320475 2621322493 2788640950 5242644986 13106612465 26213224930 65533062325 131066124650