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57158000 = 245328579
BaseRepresentation
bin1101101000001…
…0100101110000
310222112221000222
43122002211300
5104113024000
65401032212
71262556254
oct332024560
9128487028
1057158000
112a29a719
1217185668
13bac3503
14783c264
155040a85
hex3682970

57158000 has 40 divisors (see below), whose sum is σ = 138212880. Its totient is φ = 22862400.

The previous prime is 57157993. The next prime is 57158011. The reversal of 57158000 is 85175.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12290 + ... + 16289.

It is an arithmetic number, because the mean of its divisors is an integer number (3455322).

Almost surely, 257158000 is an apocalyptic number.

57158000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57158000 is an abundant number, since it is smaller than the sum of its proper divisors (81054880).

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

57158000 is a wasteful number, since it uses less digits than its factorization.

57158000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28602 (or 28586 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 57158000 is about 7560.2909996904. The cubic root of 57158000 is about 385.2053775757.

The spelling of 57158000 in words is "fifty-seven million, one hundred fifty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 28579 57158 114316 142895 228632 285790 457264 571580 714475 1143160 1428950 2286320 2857900 3572375 5715800 7144750 11431600 14289500 28579000 57158000