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85045248 = 21233769
BaseRepresentation
bin1010001000110…
…11000000000000
312221000202011000
411010123000000
5133232421443
612234452000
72051605221
oct504330000
9187022130
1085045248
1144007832
1224594000
1314808942
14b41b248
1576ed8d3
hex511b000

85045248 has 104 divisors (see below), whose sum is σ = 252282800. Its totient is φ = 28311552.

The previous prime is 85045241. The next prime is 85045249. The reversal of 85045248 is 84254058.

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 (85045241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110208 + ... + 110976.

Almost surely, 285045248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85045248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126141400).

85045248 is an abundant number, since it is smaller than the sum of its proper divisors (167237552).

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

85045248 is an equidigital number, since it uses as much as digits as its factorization.

85045248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 774 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 85045248 is about 9221.9980481455. The cubic root of 85045248 is about 439.7609721011.

Adding to 85045248 its sum of digits (36), we get a square (85045284 = 92222).

The spelling of 85045248 in words is "eighty-five million, forty-five thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 512 576 768 769 864 1024 1152 1536 1538 1728 2048 2304 2307 3072 3076 3456 4096 4608 4614 6144 6152 6912 6921 9216 9228 12288 12304 13824 13842 18432 18456 20763 24608 27648 27684 36864 36912 41526 49216 55296 55368 73824 83052 98432 110592 110736 147648 166104 196864 221472 295296 332208 393728 442944 590592 664416 787456 885888 1181184 1328832 1574912 1771776 2362368 2657664 3149824 3543552 4724736 5315328 7087104 9449472 10630656 14174208 21261312 28348416 42522624 85045248