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253086190 = 25729124673
BaseRepresentation
bin11110001010111…
…00100111101110
3122122020002222121
433011130213232
51004242224230
641040303154
76162124420
oct1705344756
9578202877
10253086190
1111a951445
1270911aba
1340583356
1425880810
151734377a
hexf15c9ee

253086190 has 32 divisors (see below), whose sum is σ = 538591680. Its totient is φ = 83779584.

The previous prime is 253086149. The next prime is 253086193. The reversal of 253086190 is 91680352.

It is a super-2 number, since 2×2530861902 = 128105239137432200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253086193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60307 + ... + 64366.

It is an arithmetic number, because the mean of its divisors is an integer number (16830990).

Almost surely, 2253086190 is an apocalyptic number.

253086190 is an abundant number, since it is smaller than the sum of its proper divisors (285505490).

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

253086190 is a wasteful number, since it uses less digits than its factorization.

253086190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124716.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 253086190 is about 15908.6828493122. The cubic root of 253086190 is about 632.5421678209.

The spelling of 253086190 in words is "two hundred fifty-three million, eighty-six thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 124673 249346 623365 872711 1246730 1745422 3615517 4363555 7231034 8727110 18077585 25308619 36155170 50617238 126543095 253086190