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30814080 = 2735111459
BaseRepresentation
bin111010110001…
…0111110000000
32010222111222020
41311202332000
530342022310
63020241440
7522625653
oct165427600
963874866
1030814080
1116437090
12a3a0280
1364cb6ab
14414189a
152a8a170
hex1d62f80

30814080 has 128 divisors (see below), whose sum is σ = 107222400. Its totient is φ = 7464960.

The previous prime is 30814033. The next prime is 30814097. The reversal of 30814080 is 8041803.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30814080.

It is a congruent number.

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, 20391 + ... + 21849.

It is an arithmetic number, because the mean of its divisors is an integer number (837675).

Almost surely, 230814080 is an apocalyptic number.

30814080 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 30814080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53611200).

30814080 is an abundant number, since it is smaller than the sum of its proper divisors (76408320).

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

30814080 is a wasteful number, since it uses less digits than its factorization.

30814080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 30814080 is about 5551.0431452115. The cubic root of 30814080 is about 313.5087996635.

Adding to 30814080 its reverse (8041803), we get a palindrome (38855883).

The spelling of 30814080 in words is "thirty million, eight hundred fourteen thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 128 132 160 165 176 192 220 240 264 320 330 352 384 440 480 528 640 660 704 880 960 1056 1320 1408 1459 1760 1920 2112 2640 2918 3520 4224 4377 5280 5836 7040 7295 8754 10560 11672 14590 16049 17508 21120 21885 23344 29180 32098 35016 43770 46688 48147 58360 64196 70032 80245 87540 93376 96294 116720 128392 140064 160490 175080 186752 192588 233440 240735 256784 280128 320980 350160 385176 466880 481470 513568 560256 641960 700320 770352 933760 962940 1027136 1283920 1400640 1540704 1925880 2054272 2567840 2801280 3081408 3851760 5135680 6162816 7703520 10271360 15407040 30814080