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3101085 = 345131931
BaseRepresentation
bin1011110101000110011101
312211112220000
423311012131
51243213320
6150244513
735234031
oct13650635
95745800
103101085
111828989
121056739
13847680
145aa1c1
15413c90
hex2f519d

3101085 has 80 divisors (see below), whose sum is σ = 6504960. Its totient is φ = 1399680.

The previous prime is 3101069. The next prime is 3101141. The reversal of 3101085 is 5801013.

It is a happy number.

It is not a de Polignac number, because 3101085 - 24 = 3101069 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 100020 + ... + 100050.

It is an arithmetic number, because the mean of its divisors is an integer number (81312).

Almost surely, 23101085 is an apocalyptic number.

It is an amenable number.

3101085 is an abundant number, since it is smaller than the sum of its proper divisors (3403875).

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

3101085 is a wasteful number, since it uses less digits than its factorization.

3101085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 3101085 is about 1760.9897785053. The cubic root of 3101085 is about 145.8269827620.

Adding to 3101085 its reverse (5801013), we get a palindrome (8902098).

The spelling of 3101085 in words is "three million, one hundred one thousand, eighty-five".

Divisors: 1 3 5 9 13 15 19 27 31 39 45 57 65 81 93 95 117 135 155 171 195 247 279 285 351 403 405 465 513 585 589 741 837 855 1053 1209 1235 1395 1539 1755 1767 2015 2223 2511 2565 2945 3627 3705 4185 5265 5301 6045 6669 7657 7695 8835 10881 11115 12555 15903 18135 20007 22971 26505 32643 33345 38285 47709 54405 68913 79515 100035 114855 163215 206739 238545 344565 620217 1033695 3101085