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30934680 = 2335725261
BaseRepresentation
bin111011000000…
…0011010011000
32011012122101220
41312000122120
530404402210
63023012040
7523640400
oct166003230
964178356
1030934680
1116509757
12a43a020
13654155a
144173800
152ab0c70
hex1d80698

30934680 has 96 divisors (see below), whose sum is σ = 107976240. Its totient is φ = 7069440.

The previous prime is 30934661. The next prime is 30934691. The reversal of 30934680 is 8643903.

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, 3250 + ... + 8510.

Almost surely, 230934680 is an apocalyptic number.

30934680 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 30934680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53988120).

30934680 is an abundant number, since it is smaller than the sum of its proper divisors (77041560).

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

30934680 is a wasteful number, since it uses less digits than its factorization.

30934680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289 (or 5278 counting only the distinct ones).

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

The square root of 30934680 is about 5561.8953603965. The cubic root of 30934680 is about 313.9172703197.

The spelling of 30934680 in words is "thirty million, nine hundred thirty-four thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 49 56 60 70 84 98 105 120 140 147 168 196 210 245 280 294 392 420 490 588 735 840 980 1176 1470 1960 2940 5261 5880 10522 15783 21044 26305 31566 36827 42088 52610 63132 73654 78915 105220 110481 126264 147308 157830 184135 210440 220962 257789 294616 315660 368270 441924 515578 552405 631320 736540 773367 883848 1031156 1104810 1288945 1473080 1546734 2062312 2209620 2577890 3093468 3866835 4419240 5155780 6186936 7733670 10311560 15467340 30934680