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131351525151520 = 2555591146833667
BaseRepresentation
bin11101110111011010101000…
…111111110101001100100000
3122020002002020122000122012011
4131313122220333311030200
5114204030410414322040
61143210020240242304
736444556146016612
oct3567325077651440
9566062218018164
10131351525151520
1138941961691373
1212894980010394
13583a51b3a975b
14246163a846db2
15102bb4bbca3ea
hex7776a8ff5320

131351525151520 has 48 divisors (see below), whose sum is σ = 310373483410368. Its totient is φ = 52531212348160.

The previous prime is 131351525151491. The next prime is 131351525151521. The reversal of 131351525151520 is 25151525153131.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (131351525151521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72522274 + ... + 74311393.

It is an arithmetic number, because the mean of its divisors is an integer number (6466114237716).

Almost surely, 2131351525151520 is an apocalyptic number.

131351525151520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131351525151520 is an abundant number, since it is smaller than the sum of its proper divisors (179021958258848).

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

131351525151520 is a wasteful number, since it uses less digits than its factorization.

131351525151520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146839273 (or 146839265 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 131351525151520 in words is "one hundred thirty-one trillion, three hundred fifty-one billion, five hundred twenty-five million, one hundred fifty-one thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 5591 11182 22364 27955 44728 55910 89456 111820 178912 223640 447280 894560 146833667 293667334 587334668 734168335 1174669336 1468336670 2349338672 2936673340 4698677344 5873346680 11746693360 23493386720 820947032197 1641894064394 3283788128788 4104735160985 6567576257576 8209470321970 13135152515152 16418940643940 26270305030304 32837881287880 65675762575760 131351525151520