Search a number
-
+
85263051 = 3193173661
BaseRepresentation
bin1010001010100…
…00001011001011
312221102210220210
411011100023023
5133311404201
612243252203
72053503216
oct505201313
9187383823
1085263051
1144146435
122467a063
1314883b13
14b47677d
1577431d6
hex51502cb

85263051 has 32 divisors (see below), whose sum is σ = 125409280. Its totient is φ = 51321600.

The previous prime is 85263049. The next prime is 85263107. The reversal of 85263051 is 15036258.

It is not a de Polignac number, because 85263051 - 21 = 85263049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85263151) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 128661 + ... + 129321.

It is an arithmetic number, because the mean of its divisors is an integer number (3919040).

Almost surely, 285263051 is an apocalyptic number.

85263051 is a deficient number, since it is larger than the sum of its proper divisors (40146229).

85263051 is a wasteful number, since it uses less digits than its factorization.

85263051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 85263051 is about 9233.7993805367. The cubic root of 85263051 is about 440.1360650128.

It can be divided in two parts, 852 and 63051, that added together give a triangular number (63903 = T357).

The spelling of 85263051 in words is "eighty-five million, two hundred sixty-three thousand, fifty-one".

Divisors: 1 3 19 31 57 73 93 219 589 661 1387 1767 1983 2263 4161 6789 12559 20491 37677 42997 48253 61473 128991 144759 389329 916807 1167987 1495843 2750421 4487529 28421017 85263051