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57473472 = 2637241149
BaseRepresentation
bin1101101100111…
…1100111000000
311000010221210010
43123033213000
5104203122342
65411504520
71265342100
oct333174700
9130127703
1057473472
112a495741
12172b8140
13bba3c94
1478c1200
1550a429c
hex36cf9c0

57473472 has 168 divisors, whose sum is σ = 182422800. Its totient is φ = 15912960.

The previous prime is 57473467. The next prime is 57473489. The reversal of 57473472 is 27437475.

It is a tau number, because it is divible by the number of its divisors (168).

It is a self number, because there is not a number n which added to its sum of digits gives 57473472.

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, 385654 + ... + 385802.

It is an arithmetic number, because the mean of its divisors is an integer number (1085850).

Almost surely, 257473472 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 57473472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91211400).

57473472 is an abundant number, since it is smaller than the sum of its proper divisors (124949328).

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

57473472 is a wasteful number, since it uses less digits than its factorization.

57473472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 202 counting only the distinct ones).

The product of its digits is 164640, while the sum is 39.

The square root of 57473472 is about 7581.1260377334. The cubic root of 57473472 is about 385.9127654175.

The spelling of 57473472 in words is "fifty-seven million, four hundred seventy-three thousand, four hundred seventy-two".