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306115068 = 223729532371
BaseRepresentation
bin10010001111101…
…111000111111100
3210100000020221010
4102033233013330
51111331140233
650213035220
710404635520
oct2217570774
9710006833
10306115068
11147880866
1286625b10
134b55c29c
142c925d80
151bd1ab63
hex123ef1fc

306115068 has 96 divisors (see below), whose sum is σ = 860751360. Its totient is φ = 82817280.

The previous prime is 306115057. The next prime is 306115081. The reversal of 306115068 is 860511603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127923 + ... + 130293.

It is an arithmetic number, because the mean of its divisors is an integer number (8966160).

Almost surely, 2306115068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306115068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430375680).

306115068 is an abundant number, since it is smaller than the sum of its proper divisors (554636292).

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

306115068 is a wasteful number, since it uses less digits than its factorization.

306115068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 306115068 is about 17496.1443752617. The cubic root of 306115068 is about 673.9508662273.

The spelling of 306115068 in words is "three hundred six million, one hundred fifteen thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 29 42 53 58 84 87 106 116 159 174 203 212 318 348 371 406 609 636 742 812 1113 1218 1484 1537 2226 2371 2436 3074 4452 4611 4742 6148 7113 9222 9484 10759 14226 16597 18444 21518 28452 32277 33194 43036 49791 64554 66388 68759 99582 125663 129108 137518 199164 206277 251326 275036 376989 412554 481313 502652 753978 825108 879641 962626 1443939 1507956 1759282 1925252 2638923 2887878 3518564 3644227 5277846 5775756 7288454 10555692 10932681 14576908 21865362 25509589 43730724 51019178 76528767 102038356 153057534 306115068