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30964080 = 2435722633
BaseRepresentation
bin111011000011…
…1100101110000
32011021010201210
41312013211300
530411322310
63023400120
7524122200
oct166074560
964233653
1030964080
1116529854
12a453040
136551a54
144180400
152ab9820
hex1d87970

30964080 has 120 divisors (see below), whose sum is σ = 111702672. Its totient is φ = 7074816.

The previous prime is 30964013. The next prime is 30964097. The reversal of 30964080 is 8046903.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10444 + ... + 13076.

Almost surely, 230964080 is an apocalyptic number.

30964080 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 30964080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55851336).

30964080 is an abundant number, since it is smaller than the sum of its proper divisors (80738592).

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

30964080 is a wasteful number, since it uses less digits than its factorization.

30964080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2650 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30964080 is about 5564.5377166482. The cubic root of 30964080 is about 314.0166867408.

The spelling of 30964080 in words is "thirty million, nine hundred sixty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 49 56 60 70 80 84 98 105 112 120 140 147 168 196 210 240 245 280 294 336 392 420 490 560 588 735 784 840 980 1176 1470 1680 1960 2352 2633 2940 3920 5266 5880 7899 10532 11760 13165 15798 18431 21064 26330 31596 36862 39495 42128 52660 55293 63192 73724 78990 92155 105320 110586 126384 129017 147448 157980 184310 210640 221172 258034 276465 294896 315960 368620 387051 442344 516068 552930 631920 645085 737240 774102 884688 1032136 1105860 1290170 1474480 1548204 1935255 2064272 2211720 2580340 3096408 3870510 4423440 5160680 6192816 7741020 10321360 15482040 30964080