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30554388660 = 223517113265091
BaseRepresentation
bin11100011101001011…
…101111100010110100
32220212101110202122110
4130131023233202310
51000033410414120
622011514331020
72131111006215
oct343513574264
986771422573
1030554388660
1111a5a179484
125b08729a70
132b5c1b1023
14169bd1b40c
15bdc6372e0
hex71d2ef8b4

30554388660 has 96 divisors (see below), whose sum is σ = 91386755712. Its totient is φ = 7600660480.

The previous prime is 30554388659. The next prime is 30554388679. The reversal of 30554388660 is 6688345503.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 17286 + ... + 247805.

It is an arithmetic number, because the mean of its divisors is an integer number (951945372).

Almost surely, 230554388660 is an apocalyptic number.

30554388660 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 30554388660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45693377856).

30554388660 is an abundant number, since it is smaller than the sum of its proper divisors (60832367052).

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

30554388660 is a wasteful number, since it uses less digits than its factorization.

30554388660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265233 (or 265231 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 30554388660 in words is "thirty billion, five hundred fifty-four million, three hundred eighty-eight thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 113 170 204 226 255 339 340 452 510 565 678 1020 1130 1356 1695 1921 2260 3390 3842 5763 6780 7684 9605 11526 19210 23052 28815 38420 57630 115260 265091 530182 795273 1060364 1325455 1590546 2650910 3181092 3976365 4506547 5301820 7952730 9013094 13519641 15905460 18026188 22532735 27039282 29955283 45065470 54078564 59910566 67598205 89865849 90130940 119821132 135196410 149776415 179731698 270392820 299552830 359463396 449329245 509239811 599105660 898658490 1018479622 1527719433 1797316980 2036959244 2546199055 3055438866 5092398110 6110877732 7638597165 10184796220 15277194330 30554388660