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131595072 = 2637179547
BaseRepresentation
bin1111101011111…
…11101101000000
3100011121201111120
413311333231000
5232142020242
621020312240
73155353050
oct765775500
9304551446
10131595072
1168311364
12380a2680
132135680b
1413697560
15b8461ec
hex7d7fb40

131595072 has 112 divisors (see below), whose sum is σ = 400872960. Its totient is φ = 37320192.

The previous prime is 131595071. The next prime is 131595077. The reversal of 131595072 is 270595131.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131595071) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 240303 + ... + 240849.

Almost surely, 2131595072 is an apocalyptic number.

131595072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131595072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200436480).

131595072 is an abundant number, since it is smaller than the sum of its proper divisors (269277888).

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

131595072 is a wasteful number, since it uses less digits than its factorization.

131595072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 131595072 is about 11471.4895283917. The cubic root of 131595072 is about 508.6431599966.

The spelling of 131595072 in words is "one hundred thirty-one million, five hundred ninety-five thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 179 192 224 336 358 448 537 547 672 716 1074 1094 1253 1344 1432 1641 2148 2188 2506 2864 3282 3759 3829 4296 4376 5012 5728 6564 7518 7658 8592 8752 10024 11456 11487 13128 15036 15316 17184 17504 20048 22974 26256 30072 30632 34368 35008 40096 45948 52512 60144 61264 80192 91896 97913 105024 120288 122528 183792 195826 240576 245056 293739 367584 391652 587478 685391 735168 783304 1174956 1370782 1566608 2056173 2349912 2741564 3133216 4112346 4699824 5483128 6266432 8224692 9399648 10966256 16449384 18799296 21932512 32898768 43865024 65797536 131595072