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131520024520140 = 22356185781418909
BaseRepresentation
bin11101111001110111100100…
…010101111010010111001100
3122020200012011122022110001110
4131321313210111322113030
5114214311002234121030
61143415244250412020
736463002546020304
oct3571674425722714
9566605148273043
10131520024520140
11389a7369137a13
1212901566131010
135850392480079
142469863094604
15103120e9041b0
hex779de457a5cc

131520024520140 has 96 divisors (see below), whose sum is σ = 374298310249920. Its totient is φ = 34496571110400.

The previous prime is 131520024520109. The next prime is 131520024520163. The reversal of 131520024520140 is 41025420025131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 131520024520098 and 131520024520107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313749006 + ... + 314167914.

It is an arithmetic number, because the mean of its divisors is an integer number (3898940731770).

Almost surely, 2131520024520140 is an apocalyptic number.

131520024520140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131520024520140 is an abundant number, since it is smaller than the sum of its proper divisors (242778285729780).

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

131520024520140 is a wasteful number, since it uses less digits than its factorization.

131520024520140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504763 (or 504761 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 131520024520140 its reverse (41025420025131), we get a palindrome (172545444545271).

The spelling of 131520024520140 in words is "one hundred thirty-one trillion, five hundred twenty billion, twenty-four million, five hundred twenty thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 122 183 244 305 366 610 732 915 1220 1830 3660 85781 171562 257343 343124 418909 428905 514686 837818 857810 1029372 1256727 1286715 1675636 1715620 2094545 2513454 2573430 4189090 5026908 5146860 5232641 6283635 8378180 10465282 12567270 15697923 20930564 25134540 25553449 26163205 31395846 51106898 52326410 62791692 76660347 78489615 102213796 104652820 127767245 153320694 156979230 255534490 306641388 313958460 383301735 511068980 766603470 1533206940 35934432929 71868865858 107803298787 143737731716 179672164645 215606597574 359344329290 431213195148 539016493935 718688658580 1078032987870 2156065975740 2192000408669 4384000817338 6576001226007 8768001634676 10960002043345 13152002452014 21920004086690 26304004904028 32880006130035 43840008173380 65760012260070 131520024520140