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57520190 = 25713312039
BaseRepresentation
bin1101101101101…
…1000000111110
311000020022212102
43123123000332
5104211121230
65412505102
71265625230
oct333330076
9130208772
1057520190
112a517852
121731b192
13bbbc320
1478d4250
1550b3045
hex36db03e

57520190 has 64 divisors (see below), whose sum is σ = 131604480. Its totient is φ = 17608320.

The previous prime is 57520189. The next prime is 57520219. The reversal of 57520190 is 9102575.

It is a super-2 number, since 2×575201902 = 6617144515272200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27191 + ... + 29229.

It is an arithmetic number, because the mean of its divisors is an integer number (2056320).

Almost surely, 257520190 is an apocalyptic number.

57520190 is an abundant number, since it is smaller than the sum of its proper divisors (74084290).

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

57520190 is a wasteful number, since it uses less digits than its factorization.

57520190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 57520190 is about 7584.2066163838. The cubic root of 57520190 is about 386.0173017024.

The spelling of 57520190 in words is "fifty-seven million, five hundred twenty thousand, one hundred ninety".

Divisors: 1 2 5 7 10 13 14 26 31 35 62 65 70 91 130 155 182 217 310 403 434 455 806 910 1085 2015 2039 2170 2821 4030 4078 5642 10195 14105 14273 20390 26507 28210 28546 53014 63209 71365 126418 132535 142730 185549 265070 316045 371098 442463 632090 821717 884926 927745 1643434 1855490 2212315 4108585 4424630 5752019 8217170 11504038 28760095 57520190