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30348960 = 2535232749
BaseRepresentation
bin111001111000…
…1011010100000
32010002212221120
41303301122200
530232131320
63002252240
7515650635
oct163613240
963085846
1030348960
1116149694
12a1b7080
136397a85
14406018c
1529e7440
hex1cf16a0

30348960 has 96 divisors (see below), whose sum is σ = 99792000. Its totient is φ = 7738368.

The previous prime is 30348943. The next prime is 30348973. The reversal of 30348960 is 6984303.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9666 + ... + 12414.

It is an arithmetic number, because the mean of its divisors is an integer number (1039500).

Almost surely, 230348960 is an apocalyptic number.

30348960 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 30348960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49896000).

30348960 is an abundant number, since it is smaller than the sum of its proper divisors (69443040).

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

30348960 is a wasteful number, since it uses less digits than its factorization.

30348960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790 (or 2782 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 30348960 is about 5508.9890179596. The cubic root of 30348960 is about 311.9233868430.

The spelling of 30348960 in words is "thirty million, three hundred forty-eight thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 32 40 46 48 60 69 80 92 96 115 120 138 160 184 230 240 276 345 368 460 480 552 690 736 920 1104 1380 1840 2208 2749 2760 3680 5498 5520 8247 10996 11040 13745 16494 21992 27490 32988 41235 43984 54980 63227 65976 82470 87968 109960 126454 131952 164940 189681 219920 252908 263904 316135 329880 379362 439840 505816 632270 659760 758724 948405 1011632 1264540 1319520 1517448 1896810 2023264 2529080 3034896 3793620 5058160 6069792 7587240 10116320 15174480 30348960