Search a number
-
+
307630368 = 253217193307
BaseRepresentation
bin10010010101100…
…001000100100000
3210102212020112100
4102111201010200
51112223132433
650305330400
710423546353
oct2225410440
9712766470
10307630368
11148716281
1287036a00
134b96cc06
142cbdc29a
151c019b13
hex12561120

307630368 has 144 divisors (see below), whose sum is σ = 975330720. Its totient is φ = 91404288.

The previous prime is 307630357. The next prime is 307630399. The reversal of 307630368 is 863036703.

307630368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91371 + ... + 94677.

It is an arithmetic number, because the mean of its divisors is an integer number (6773130).

Almost surely, 2307630368 is an apocalyptic number.

307630368 is a gapful number since it is divisible by the number (38) 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 307630368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487665360).

307630368 is an abundant number, since it is smaller than the sum of its proper divisors (667700352).

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

307630368 is a wasteful number, since it uses less digits than its factorization.

307630368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359 (or 3348 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 307630368 is about 17539.3947444032. The cubic root of 307630368 is about 675.0610776008.

The spelling of 307630368 in words is "three hundred seven million, six hundred thirty thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 19 24 32 34 36 38 48 51 57 68 72 76 96 102 114 136 144 152 153 171 204 228 272 288 304 306 323 342 408 456 544 608 612 646 684 816 912 969 1224 1292 1368 1632 1824 1938 2448 2584 2736 2907 3307 3876 4896 5168 5472 5814 6614 7752 9921 10336 11628 13228 15504 19842 23256 26456 29763 31008 39684 46512 52912 56219 59526 62833 79368 93024 105824 112438 119052 125666 158736 168657 188499 224876 238104 251332 317472 337314 376998 449752 476208 502664 505971 565497 674628 753996 899504 952416 1005328 1011942 1068161 1130994 1349256 1507992 1799008 2010656 2023884 2136322 2261988 2698512 3015984 3204483 4047768 4272644 4523976 5397024 6031968 6408966 8095536 8545288 9047952 9613449 12817932 16191072 17090576 18095904 19226898 25635864 34181152 38453796 51271728 76907592 102543456 153815184 307630368