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131056704 = 2636532
BaseRepresentation
bin1111100111111…
…00010001000000
3100010121101000000
413303330101000
5232022303304
621001000000
73150651342
oct763742100
9303541000
10131056704
1167a83929
1237a83000
13211c875c
1413597292
15b78b939
hex7cfc440

131056704 has 147 divisors (see below), whose sum is σ = 397415893. Its totient is φ = 42861312.

The previous prime is 131056697. The next prime is 131056711. The reversal of 131056704 is 407650131.

The square root of 131056704 is 11448.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (131056697) and next prime (131056711).

It can be written as a sum of positive squares in only one way, i.e., 94478400 + 36578304 = 9720^2 + 6048^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 2472742 + ... + 2472794.

Almost surely, 2131056704 is an apocalyptic number.

131056704 is the 11448-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131056704

131056704 is an abundant number, since it is smaller than the sum of its proper divisors (266359189).

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

131056704 is an frugal number, since it uses more digits than its factorization.

131056704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The cubic root of 131056704 is about 507.9485760251.

The spelling of 131056704 in words is "one hundred thirty-one million, fifty-six thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 53 54 64 72 81 96 106 108 144 159 162 192 212 216 243 288 318 324 424 432 477 486 576 636 648 729 848 864 954 972 1272 1296 1431 1458 1696 1728 1908 1944 2544 2592 2809 2862 2916 3392 3816 3888 4293 5088 5184 5618 5724 5832 7632 7776 8427 8586 10176 11236 11448 11664 12879 15264 15552 16854 17172 22472 22896 23328 25281 25758 30528 33708 34344 38637 44944 45792 46656 50562 51516 67416 68688 75843 77274 89888 91584 101124 103032 134832 137376 151686 154548 179776 202248 206064 227529 269664 274752 303372 309096 404496 412128 455058 539328 606744 618192 682587 808992 824256 910116 1213488 1236384 1365174 1617984 1820232 2047761 2426976 2472768 2730348 3640464 4095522 4853952 5460696 7280928 8191044 10921392 14561856 16382088 21842784 32764176 43685568 65528352 131056704