Search a number
-
+
306315264 = 21731941
BaseRepresentation
bin10010010000100…
…000000000000000
3210100101102112210
4102100200000000
51111404042024
650221222120
710406431263
oct2220400000
9710342483
10306315264
111479a8212
1286701940
134b5cc448
142c978cda
151bd5a129
hex12420000

306315264 has 144 divisors (see below), whose sum is σ = 880800480. Its totient is φ = 94371840.

The previous prime is 306315263. The next prime is 306315281. The reversal of 306315264 is 462513603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306315263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7471084 + ... + 7471124.

It is an arithmetic number, because the mean of its divisors is an integer number (6116670).

Almost surely, 2306315264 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 306315264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440400240).

306315264 is an abundant number, since it is smaller than the sum of its proper divisors (574485216).

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

306315264 is an frugal number, since it uses more digits than its factorization.

306315264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 306315264 is about 17501.8645863805. The cubic root of 306315264 is about 674.0977531115.

Adding to 306315264 its reverse (462513603), we get a palindrome (768828867).

The spelling of 306315264 in words is "three hundred six million, three hundred fifteen thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 41 48 57 64 76 82 96 114 123 128 152 164 192 228 246 256 304 328 384 456 492 512 608 656 768 779 912 984 1024 1216 1312 1536 1558 1824 1968 2048 2337 2432 2624 3072 3116 3648 3936 4096 4674 4864 5248 6144 6232 7296 7872 8192 9348 9728 10496 12288 12464 14592 15744 16384 18696 19456 20992 24576 24928 29184 31488 32768 37392 38912 41984 49152 49856 58368 62976 65536 74784 77824 83968 98304 99712 116736 125952 131072 149568 155648 167936 196608 199424 233472 251904 299136 311296 335872 393216 398848 466944 503808 598272 622592 671744 797696 933888 1007616 1196544 1245184 1343488 1595392 1867776 2015232 2393088 2490368 2686976 3190784 3735552 4030464 4786176 5373952 6381568 7471104 8060928 9572352 12763136 16121856 19144704 25526272 38289408 51052544 76578816 102105088 153157632 306315264