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131244111030 = 235113227170551
BaseRepresentation
bin111101000111011000…
…0100011010010110110
3110112202121221122010010
41322032300203102312
54122241443023110
6140143120441050
712324231352134
oct1721660432266
9415677848103
10131244111030
115072997416a
1221529479186
13c4b7871ac6
1464d07dc754
1536321b4020
hex1e8ec234b6

131244111030 has 64 divisors (see below), whose sum is σ = 319175106048. Its totient is φ = 34535692800.

The previous prime is 131244111001. The next prime is 131244111041. The reversal of 131244111030 is 30111442131.

It is a junction number, because it is equal to n+sod(n) for n = 131244110988 and 131244111006.

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, 684255 + ... + 854805.

It is an arithmetic number, because the mean of its divisors is an integer number (4987111032).

Almost surely, 2131244111030 is an apocalyptic number.

131244111030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131244111030 is an abundant number, since it is smaller than the sum of its proper divisors (187930995018).

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

131244111030 is a wasteful number, since it uses less digits than its factorization.

131244111030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170901.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 131244111030 its reverse (30111442131), we get a palindrome (161355553161).

The spelling of 131244111030 in words is "one hundred thirty-one billion, two hundred forty-four million, one hundred eleven thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 113 226 227 339 454 565 678 681 1130 1135 1362 1695 2270 3390 3405 6810 25651 51302 76953 128255 153906 170551 256510 341102 384765 511653 769530 852755 1023306 1705510 2558265 5116530 19272263 38544526 38715077 57816789 77430154 96361315 115633578 116145231 192722630 193575385 232290462 289083945 387150770 578167890 580726155 1161452310 4374803701 8749607402 13124411103 21874018505 26248822206 43748037010 65622055515 131244111030