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131330354550 = 23523128243087
BaseRepresentation
bin111101001001111100…
…1100010110101110110
3110112222122020020222120
41322103321202311312
54122431032321200
6140155441140410
712326326411023
oct1722371426566
9415878206876
10131330354550
115077361a1aa
122155232a706
13c4cc6a9c85
1464dc04c54a
153639a4c9a0
hex1e93e62d76

131330354550 has 48 divisors (see below), whose sum is σ = 336205719552. Its totient is φ = 33891703200.

The previous prime is 131330354549. The next prime is 131330354563. The reversal of 131330354550 is 55453033131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14116894 + ... + 14126193.

It is an arithmetic number, because the mean of its divisors is an integer number (7004285824).

Almost surely, 2131330354550 is an apocalyptic number.

131330354550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131330354550 is an abundant number, since it is smaller than the sum of its proper divisors (204875365002).

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

131330354550 is a wasteful number, since it uses less digits than its factorization.

131330354550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28243133 (or 28243128 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 131330354550 its reverse (55453033131), we get a palindrome (186783387681).

The spelling of 131330354550 in words is "one hundred thirty-one billion, three hundred thirty million, three hundred fifty-four thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 31 50 62 75 93 150 155 186 310 465 775 930 1550 2325 4650 28243087 56486174 84729261 141215435 169458522 282430870 423646305 706077175 847292610 875535697 1412154350 1751071394 2118231525 2626607091 4236463050 4377678485 5253214182 8755356970 13133035455 21888392425 26266070910 43776784850 65665177275 131330354550