Search a number
-
+
3081078 = 2347111319
BaseRepresentation
bin1011110000001101110110
312210112110000
423300031312
51242043303
6150012130
735121510
oct13601566
95715400
103081078
111814950
121047046
1383b530
145a2bb0
1540cda3
hex2f0376

3081078 has 160 divisors (see below), whose sum is σ = 9757440. Its totient is φ = 699840.

The previous prime is 3081073. The next prime is 3081083. The reversal of 3081078 is 8701803.

It is an interprime number because it is at equal distance from previous prime (3081073) and next prime (3081083).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081073) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 162153 + ... + 162171.

It is an arithmetic number, because the mean of its divisors is an integer number (60984).

Almost surely, 23081078 is an apocalyptic number.

3081078 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3081078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4878720).

3081078 is an abundant number, since it is smaller than the sum of its proper divisors (6676362).

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

3081078 is a wasteful number, since it uses less digits than its factorization.

3081078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 3081078 is about 1755.2999743634. The cubic root of 3081078 is about 145.5126994973.

The spelling of 3081078 in words is "three million, eighty-one thousand, seventy-eight".

Divisors: 1 2 3 6 7 9 11 13 14 18 19 21 22 26 27 33 38 39 42 54 57 63 66 77 78 81 91 99 114 117 126 133 143 154 162 171 182 189 198 209 231 234 247 266 273 286 297 342 351 378 399 418 429 462 494 513 546 567 594 627 693 702 741 798 819 858 891 1001 1026 1053 1134 1197 1254 1287 1386 1463 1482 1539 1638 1729 1782 1881 2002 2079 2106 2223 2394 2457 2574 2717 2926 3003 3078 3458 3591 3762 3861 4158 4389 4446 4914 5187 5434 5643 6006 6237 6669 7182 7371 7722 8151 8778 9009 10374 10773 11286 11583 12474 13167 13338 14742 15561 16302 16929 18018 19019 20007 21546 23166 24453 26334 27027 31122 33858 38038 39501 40014 46683 48906 54054 57057 73359 79002 81081 93366 114114 118503 140049 146718 162162 171171 220077 237006 280098 342342 440154 513513 1027026 1540539 3081078