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85882251 = 3721323457
BaseRepresentation
bin1010001111001…
…11010110001011
312222121021022010
411013213112023
5133441213001
612304431003
72061662400
oct507472613
9188537263
1085882251
1144529674
1224918463
1314a3c900
14b5982a7
1578168d6
hex51e758b

85882251 has 36 divisors (see below), whose sum is σ = 144281592. Its totient is φ = 45287424.

The previous prime is 85882193. The next prime is 85882267. The reversal of 85882251 is 15228858.

It is not a de Polignac number, because 85882251 - 26 = 85882187 is a prime.

It is a super-2 number, since 2×858822512 = 14751522073654002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85882271) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23115 + ... + 26571.

It is an arithmetic number, because the mean of its divisors is an integer number (4007822).

Almost surely, 285882251 is an apocalyptic number.

85882251 is a deficient number, since it is larger than the sum of its proper divisors (58399341).

85882251 is a wasteful number, since it uses less digits than its factorization.

85882251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500 (or 3480 counting only the distinct ones).

The product of its digits is 51200, while the sum is 39.

The square root of 85882251 is about 9267.2677203154. The cubic root of 85882251 is about 441.1989528109.

The spelling of 85882251 in words is "eighty-five million, eight hundred eighty-two thousand, two hundred fifty-one".

Divisors: 1 3 7 13 21 39 49 91 147 169 273 507 637 1183 1911 3457 3549 8281 10371 24199 24843 44941 72597 134823 169393 314587 508179 584233 943761 1752699 2202109 4089631 6606327 12268893 28627417 85882251