Search a number
-
+
308007859980 = 223561127662639
BaseRepresentation
bin1000111101101101011…
…00101111011100001100
31002110000121010110111210
410132312230233130030
520021300003004410
6353255153214420
731152502420032
oct4366654573414
91073017113453
10308007859980
11109697452aa7
124b83b261410
1323077b944b2
1410c9c894552
15802a70d220
hex47b6b2f70c

308007859980 has 96 divisors (see below), whose sum is σ = 883463454720. Its totient is φ = 80152692480.

The previous prime is 308007859979. The next prime is 308007859997. The reversal of 308007859980 is 89958700803.

It is a self number, because there is not a number n which added to its sum of digits gives 308007859980.

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, 133501 + ... + 796139.

It is an arithmetic number, because the mean of its divisors is an integer number (9202744320).

Almost surely, 2308007859980 is an apocalyptic number.

308007859980 is a gapful number since it is divisible by the number (30) 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 308007859980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441731727360).

308007859980 is an abundant number, since it is smaller than the sum of its proper divisors (575455594740).

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

308007859980 is a wasteful number, since it uses less digits than its factorization.

308007859980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662839 (or 662837 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 308007859980 in words is "three hundred eight billion, seven million, eight hundred fifty-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 122 127 183 244 254 305 366 381 508 610 635 732 762 915 1220 1270 1524 1830 1905 2540 3660 3810 7620 7747 15494 23241 30988 38735 46482 77470 92964 116205 154940 232410 464820 662639 1325278 1987917 2650556 3313195 3975834 6626390 7951668 9939585 13252780 19879170 39758340 40420979 80841958 84155153 121262937 161683916 168310306 202104895 242525874 252465459 336620612 404209790 420775765 485051748 504930918 606314685 808419580 841551530 1009861836 1212629370 1262327295 1683103060 2425258740 2524654590 5049309180 5133464333 10266928666 15400392999 20533857332 25667321665 30800785998 51334643330 61601571996 77001964995 102669286660 154003929990 308007859980