Search a number
-
+
85161288 = 23367211251
BaseRepresentation
bin1010001001101…
…11010101001000
312221020122022210
411010313111020
5133300130123
612241145120
72052600432
oct504672510
9187218283
1085161288
1144086a33
122462b1a0
13148496c4
14b44b652
157722e93
hex5137548

85161288 has 64 divisors (see below), whose sum is σ = 217969920. Its totient is φ = 27720000.

The previous prime is 85161283. The next prime is 85161311. The reversal of 85161288 is 88216158.

It is not an unprimeable number, because it can be changed into a prime (85161283) 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, 339163 + ... + 339413.

It is an arithmetic number, because the mean of its divisors is an integer number (3405780).

Almost surely, 285161288 is an apocalyptic number.

It is an amenable number.

85161288 is an abundant number, since it is smaller than the sum of its proper divisors (132808632).

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

85161288 is a wasteful number, since it uses less digits than its factorization.

85161288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 534 counting only the distinct ones).

The product of its digits is 30720, while the sum is 39.

The square root of 85161288 is about 9228.2873817410. The cubic root of 85161288 is about 439.9608918409.

The spelling of 85161288 in words is "eighty-five million, one hundred sixty-one thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 67 134 201 211 251 268 402 422 502 536 633 753 804 844 1004 1266 1506 1608 1688 2008 2532 3012 5064 6024 14137 16817 28274 33634 42411 50451 52961 56548 67268 84822 100902 105922 113096 134536 158883 169644 201804 211844 317766 339288 403608 423688 635532 1271064 3548387 7096774 10645161 14193548 21290322 28387096 42580644 85161288