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85802472 = 23327170243
BaseRepresentation
bin1010001110100…
…11110111101000
312222110012212100
411013103313220
5133431134342
612303013400
72061210660
oct507236750
9188405770
1085802472
1144484738
122489a260
1314a124c2
14b5771a0
1577ece4c
hex51d3de8

85802472 has 48 divisors (see below), whose sum is σ = 265580640. Its totient is φ = 24514848.

The previous prime is 85802467. The next prime is 85802477. The reversal of 85802472 is 27420858.

It is a happy number.

85802472 is a `hidden beast` number, since 8 + 580 + 2 + 4 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (85802467) and next prime (85802477).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (85802477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84618 + ... + 85625.

It is an arithmetic number, because the mean of its divisors is an integer number (5532930).

Almost surely, 285802472 is an apocalyptic number.

It is an amenable number.

85802472 is an abundant number, since it is smaller than the sum of its proper divisors (179778168).

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

85802472 is a wasteful number, since it uses less digits than its factorization.

85802472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170262 (or 170255 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 85802472 is about 9262.9623771232. The cubic root of 85802472 is about 441.0622954865.

The spelling of 85802472 in words is "eighty-five million, eight hundred two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 170243 340486 510729 680972 1021458 1191701 1361944 1532187 2042916 2383402 3064374 3575103 4085832 4766804 6128748 7150206 9533608 10725309 12257496 14300412 21450618 28600824 42901236 85802472