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57816472 = 2372831777
BaseRepresentation
bin1101110010001…
…1010110011000
311000210101021211
43130203112120
5104300111342
65423112504
71301301100
oct334432630
9130711254
1057816472
112a6aa40a
1217442734
13bc9413c
147970200
155120c17
hex3723598

57816472 has 48 divisors (see below), whose sum is σ = 127695960. Its totient is φ = 24466176.

The previous prime is 57816461. The next prime is 57816491. The reversal of 57816472 is 27461875.

57816472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 31648 + ... + 33424.

Almost surely, 257816472 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 57816472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63847980).

57816472 is an abundant number, since it is smaller than the sum of its proper divisors (69879488).

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

57816472 is a wasteful number, since it uses less digits than its factorization.

57816472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880 (or 1869 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 57816472 is about 7603.7143554976. The cubic root of 57816472 is about 386.6789486124.

The spelling of 57816472 in words is "fifty-seven million, eight hundred sixteen thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 49 56 83 98 166 196 332 392 581 664 1162 1777 2324 3554 4067 4648 7108 8134 12439 14216 16268 24878 32536 49756 87073 99512 147491 174146 294982 348292 589964 696584 1032437 1179928 2064874 4129748 7227059 8259496 14454118 28908236 57816472