Search a number
-
+
3081046272 = 28317475021
BaseRepresentation
bin1011011110100101…
…0000100100000000
321221201112100220220
42313221100210000
522302221440042
61225421303040
7136231314123
oct26751204400
97851470826
103081046272
111341196737
1271ba04a80
133a141cc05
142132a23ba
151307528ec
hexb7a50900

3081046272 has 144 divisors (see below), whose sum is σ = 8868932352. Its totient is φ = 945848320.

The previous prime is 3081046261. The next prime is 3081046279. The reversal of 3081046272 is 2726401803.

It is a super-2 number, since 2×30810462722 = 18985692260410195968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3081046279) 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, 611122 + ... + 616142.

It is an arithmetic number, because the mean of its divisors is an integer number (61589808).

Almost surely, 23081046272 is an apocalyptic number.

3081046272 is a gapful number since it is divisible by the number (32) 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 3081046272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4434466176).

3081046272 is an abundant number, since it is smaller than the sum of its proper divisors (5787886080).

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

3081046272 is a wasteful number, since it uses less digits than its factorization.

3081046272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104 (or 5090 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 3081046272 is about 55507.1731580703. The cubic root of 3081046272 is about 1455.1220001385.

The spelling of 3081046272 in words is "three billion, eighty-one million, forty-six thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 47 48 51 64 68 94 96 102 128 136 141 188 192 204 256 272 282 376 384 408 544 564 752 768 799 816 1088 1128 1504 1598 1632 2176 2256 2397 3008 3196 3264 4352 4512 4794 5021 6016 6392 6528 9024 9588 10042 12032 12784 13056 15063 18048 19176 20084 25568 30126 36096 38352 40168 51136 60252 76704 80336 85357 102272 120504 153408 160672 170714 204544 235987 241008 256071 306816 321344 341428 471974 482016 512142 613632 642688 682856 707961 943948 964032 1024284 1285376 1365712 1415922 1887896 1928064 2048568 2731424 2831844 3775792 3856128 4011779 4097136 5462848 5663688 7551584 8023558 8194272 10925696 11327376 12035337 15103168 16047116 16388544 21851392 22654752 24070674 30206336 32094232 32777088 45309504 48141348 60412672 64188464 65554176 90619008 96282696 128376928 181238016 192565392 256753856 385130784 513507712 770261568 1027015424 1540523136 3081046272