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85028751 = 3327711369
BaseRepresentation
bin1010001000101…
…10111110001111
312220222220112000
411010112332033
5133231410001
612234243343
72051506143
oct504267617
9186886460
1085028751
1143aa63a5
1224586553
1314801292
14b415223
1576e8a86
hex5116f8f

85028751 has 16 divisors (see below), whose sum is σ = 126434400. Its totient is φ = 56476224.

The previous prime is 85028729. The next prime is 85028761. The reversal of 85028751 is 15782058.

It is not a de Polignac number, because 85028751 - 29 = 85028239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85028761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1795 + ... + 13163.

It is an arithmetic number, because the mean of its divisors is an integer number (7902150).

Almost surely, 285028751 is an apocalyptic number.

85028751 is a deficient number, since it is larger than the sum of its proper divisors (41405649).

85028751 is a wasteful number, since it uses less digits than its factorization.

85028751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11655 (or 11649 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 85028751 is about 9221.1035673611. The cubic root of 85028751 is about 439.7325354510.

The spelling of 85028751 in words is "eighty-five million, twenty-eight thousand, seven hundred fifty-one".

Divisors: 1 3 9 27 277 831 2493 7479 11369 34107 102321 306963 3149213 9447639 28342917 85028751