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57668832 = 25321373211
BaseRepresentation
bin1101101111111…
…1010011100000
311000111212202200
43123333103200
5104230400312
65420013200
71300114464
oct333772340
9130455680
1057668832
112a6094a1
1217391200
13bc41b90
1479324a4
1550e20dc
hex36ff4e0

57668832 has 144 divisors (see below), whose sum is σ = 179878608. Its totient is φ = 17418240.

The previous prime is 57668803. The next prime is 57668867. The reversal of 57668832 is 23886675.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273207 + ... + 273417.

It is an arithmetic number, because the mean of its divisors is an integer number (1249157).

Almost surely, 257668832 is an apocalyptic number.

57668832 is a gapful number since it is divisible by the number (52) 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 57668832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89939304).

57668832 is an abundant number, since it is smaller than the sum of its proper divisors (122209776).

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

57668832 is a wasteful number, since it uses less digits than its factorization.

57668832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 302 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 57668832 is about 7593.9997366342. Note that the first 3 decimals coincide. The cubic root of 57668832 is about 386.3495272474.

The spelling of 57668832 in words is "fifty-seven million, six hundred sixty-eight thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 72 73 78 96 104 117 144 146 156 208 211 219 234 288 292 312 416 422 438 468 584 624 633 657 844 876 936 949 1168 1248 1266 1314 1688 1752 1872 1898 1899 2336 2532 2628 2743 2847 3376 3504 3744 3796 3798 5064 5256 5486 5694 6752 7008 7592 7596 8229 8541 10128 10512 10972 11388 15184 15192 15403 16458 17082 20256 21024 21944 22776 24687 30368 30384 30806 32916 34164 43888 45552 46209 49374 60768 61612 65832 68328 87776 91104 92418 98748 123224 131664 136656 138627 184836 197496 200239 246448 263328 273312 277254 369672 394992 400478 492896 554508 600717 739344 789984 800956 1109016 1201434 1478688 1601912 1802151 2218032 2402868 3203824 3604302 4436064 4805736 6407648 7208604 9611472 14417208 19222944 28834416 57668832