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57756196256 = 25112532291229
BaseRepresentation
bin110101110010100010…
…011001110110100000
312112002010110202122212
4311302202121312200
51421241041240011
642311031421252
74113152365553
oct656242316640
9175063422585
1057756196256
112254895a100
12b23a524828
1355a592c875
142b1c89269a
15178078208b
hexd72899da0

57756196256 has 144 divisors (see below), whose sum is σ = 128002631400. Its totient is φ = 25624135680.

The previous prime is 57756196237. The next prime is 57756196261. The reversal of 57756196256 is 65269165775.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52128195856 + 5628000400 = 228316^2 + 75020^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57756196195 and 57756196204.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 46993850 + ... + 46995078.

Almost surely, 257756196256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57756196256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64001315700).

57756196256 is an abundant number, since it is smaller than the sum of its proper divisors (70246435144).

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

57756196256 is a wasteful number, since it uses less digits than its factorization.

57756196256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1524 counting only the distinct ones).

The product of its digits is 23814000, while the sum is 59.

It can be divided in two parts, 5775619 and 6256, that added together give a palindrome (5781875).

The spelling of 57756196256 in words is "fifty-seven billion, seven hundred fifty-six million, one hundred ninety-six thousand, two hundred fifty-six".

Divisors: 1 2 4 8 11 16 22 32 44 53 88 106 121 176 212 229 242 352 424 458 484 583 848 916 968 1166 1229 1696 1832 1936 2332 2458 2519 3664 3872 4664 4916 5038 6413 7328 9328 9832 10076 12137 12826 13519 18656 19664 20152 24274 25652 27038 27709 39328 40304 48548 51304 54076 55418 65137 80608 97096 102608 108152 110836 130274 133507 148709 194192 205216 216304 221672 260548 267014 281441 297418 388384 432608 443344 521096 534028 562882 594836 716507 886688 1042192 1068056 1125764 1189672 1433014 1468577 2084384 2136112 2251528 2379344 2866028 2937154 3095851 4272224 4503056 4758688 5732056 5874308 6191702 7881577 9006112 11464112 11748616 12383404 14916373 15763154 22928224 23497232 24766808 29832746 31526308 34054361 46994464 49533616 59665492 63052616 68108722 99067232 119330984 126105232 136217444 164080103 238661968 252210464 272434888 328160206 477323936 544869776 656320412 1089739552 1312640824 1804881133 2625281648 3609762266 5250563296 7219524532 14439049064 28878098128 57756196256