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57456669360 = 24351733194243
BaseRepresentation
bin110101100000101011…
…110011001010110000
312111022020212020000010
4311200223303022300
51420132401404420
642221211454520
74102554426366
oct654053631260
9174266766003
1057456669360
1122404879112
12b176157440
13555886920c
142ad0ba3636
1517643184e0
hexd60af32b0

57456669360 has 160 divisors (see below), whose sum is σ = 188694351360. Its totient is φ = 14412754944.

The previous prime is 57456669293. The next prime is 57456669397. The reversal of 57456669360 is 6396665475.

It is a self number, because there is not a number n which added to its sum of digits gives 57456669360.

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 31 ways as a sum of consecutive naturals, for example, 13539399 + ... + 13543641.

It is an arithmetic number, because the mean of its divisors is an integer number (1179339696).

Almost surely, 257456669360 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 57456669360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94347175680).

57456669360 is an abundant number, since it is smaller than the sum of its proper divisors (131237682000).

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

57456669360 is a wasteful number, since it uses less digits than its factorization.

57456669360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7595 (or 7589 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 57.

The spelling of 57456669360 in words is "fifty-seven billion, four hundred fifty-six million, six hundred sixty-nine thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 204 240 255 272 340 408 510 680 816 1020 1360 2040 3319 4080 4243 6638 8486 9957 12729 13276 16595 16972 19914 21215 25458 26552 33190 33944 39828 42430 49785 50916 53104 56423 63645 66380 67888 72131 79656 84860 99570 101832 112846 127290 132760 144262 159312 169269 169720 199140 203664 216393 225692 254580 265520 282115 288524 338538 339440 360655 398280 432786 451384 509160 564230 577048 677076 721310 796560 846345 865572 902768 1018320 1081965 1128460 1154096 1354152 1442620 1692690 1731144 2163930 2256920 2708304 2885240 3385380 3462288 4327860 4513840 5770480 6770760 8655720 13541520 14082517 17311440 28165034 42247551 56330068 70412585 84495102 112660136 140825170 168990204 211237755 225320272 239402789 281650340 337980408 422475510 478805578 563300680 675960816 718208367 844951020 957611156 1126601360 1197013945 1436416734 1689902040 1915222312 2394027890 2872833468 3379804080 3591041835 3830444624 4788055780 5745666936 7182083670 9576111560 11491333872 14364167340 19152223120 28728334680 57456669360