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85812672 = 2631141991
BaseRepresentation
bin1010001110101…
…10010111000000
312222110201212010
411013112113000
5133432001142
612303132520
72061252501
oct507262700
9188421763
1085812672
1144491370
12248a4140
1314a1703a
14b57aba8
157800e9c
hex51d65c0

85812672 has 112 divisors (see below), whose sum is σ = 253983744. Its totient is φ = 25344000.

The previous prime is 85812667. The next prime is 85812673. The reversal of 85812672 is 27621858.

It is a self number, because there is not a number n which added to its sum of digits gives 85812672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85812673) 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, 86097 + ... + 87087.

It is an arithmetic number, because the mean of its divisors is an integer number (2267712).

Almost surely, 285812672 is an apocalyptic number.

85812672 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85812672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126991872).

85812672 is an abundant number, since it is smaller than the sum of its proper divisors (168171072).

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

85812672 is a wasteful number, since it uses less digits than its factorization.

85812672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1048 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 85812672 is about 9263.5129405642. The cubic root of 85812672 is about 441.0797722835.

It can be divided in two parts, 858 and 12672, that added together give a triangular number (13530 = T164).

The spelling of 85812672 in words is "eighty-five million, eight hundred twelve thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 41 44 48 64 66 82 88 96 123 132 164 176 192 246 264 328 352 451 492 528 656 704 902 984 991 1056 1312 1353 1804 1968 1982 2112 2624 2706 2973 3608 3936 3964 5412 5946 7216 7872 7928 10824 10901 11892 14432 15856 21648 21802 23784 28864 31712 32703 40631 43296 43604 47568 63424 65406 81262 86592 87208 95136 121893 130812 162524 174416 190272 243786 261624 325048 348832 446941 487572 523248 650096 697664 893882 975144 1046496 1300192 1340823 1787764 1950288 2092992 2600384 2681646 3575528 3900576 5363292 7151056 7801152 10726584 14302112 21453168 28604224 42906336 85812672