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57263472 = 2432756809
BaseRepresentation
bin1101101001110…
…0010101110000
310222202021201100
43122130111300
5104124412342
65403204400
71263505620
oct332342560
9128667640
1057263472
112a361992
1217216700
13bb2c516
147868880
155061e4c
hex369c570

57263472 has 60 divisors (see below), whose sum is σ = 183155440. Its totient is φ = 16360704.

The previous prime is 57263467. The next prime is 57263527. The reversal of 57263472 is 27436275.

It is a happy number.

57263472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 27397 + ... + 29412.

Almost surely, 257263472 is an apocalyptic number.

It is an amenable number.

57263472 is an abundant number, since it is smaller than the sum of its proper divisors (125891968).

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

57263472 is a wasteful number, since it uses less digits than its factorization.

57263472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56830 (or 56821 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 57263472 is about 7567.2631776621. The cubic root of 57263472 is about 385.4421680924.

The spelling of 57263472 in words is "fifty-seven million, two hundred sixty-three thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 56809 113618 170427 227236 340854 397663 454472 511281 681708 795326 908944 1022562 1192989 1363416 1590652 2045124 2385978 2726832 3181304 3578967 4090248 4771956 6362608 7157934 8180496 9543912 14315868 19087824 28631736 57263472