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57028050 = 2345214081
BaseRepresentation
bin1101100110001…
…0110111010010
310222022022210000
43121202313102
5104044344200
65354150430
71261505352
oct331426722
9128268700
1057028050
112a211022
1217122416
13ba79311
147806b62
155017300
hex3662dd2

57028050 has 60 divisors (see below), whose sum is σ = 158464746. Its totient is φ = 15206400.

The previous prime is 57028039. The next prime is 57028051. The reversal of 57028050 is 5082075.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 50168889 + 6859161 = 7083^2 + 2619^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (57028051) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2991 + ... + 11090.

Almost surely, 257028050 is an apocalyptic number.

57028050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57028050 is an abundant number, since it is smaller than the sum of its proper divisors (101436696).

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

57028050 is a wasteful number, since it uses less digits than its factorization.

57028050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14105 (or 14091 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 57028050 is about 7551.6918634171. The cubic root of 57028050 is about 384.9132316972.

The spelling of 57028050 in words is "fifty-seven million, twenty-eight thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 81 90 135 150 162 225 270 405 450 675 810 1350 2025 4050 14081 28162 42243 70405 84486 126729 140810 211215 253458 352025 380187 422430 633645 704050 760374 1056075 1140561 1267290 1900935 2112150 2281122 3168225 3801870 5702805 6336450 9504675 11405610 19009350 28514025 57028050