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30955008 = 29372879
BaseRepresentation
bin111011000010…
…1011000000000
32011020200021210
41312011120000
530411030013
63023250120
7524053560
oct166053000
964220253
1030955008
1116522a57
12a449940
13654a896
14417ada0
152ab6cc3
hex1d85600

30955008 has 80 divisors (see below), whose sum is σ = 94279680. Its totient is φ = 8841216.

The previous prime is 30954997. The next prime is 30955031. The reversal of 30955008 is 80055903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9313 + ... + 12191.

It is an arithmetic number, because the mean of its divisors is an integer number (1178496).

Almost surely, 230955008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30955008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47139840).

30955008 is an abundant number, since it is smaller than the sum of its proper divisors (63324672).

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

30955008 is an equidigital number, since it uses as much as digits as its factorization.

30955008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907 (or 2891 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 30955008 is about 5563.7224948770. The cubic root of 30955008 is about 313.9860163895.

The spelling of 30955008 in words is "thirty million, nine hundred fifty-five thousand, eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 512 672 768 896 1344 1536 1792 2688 2879 3584 5376 5758 8637 10752 11516 17274 20153 23032 34548 40306 46064 60459 69096 80612 92128 120918 138192 161224 184256 241836 276384 322448 368512 483672 552768 644896 737024 967344 1105536 1289792 1474048 1934688 2211072 2579584 3869376 4422144 5159168 7738752 10318336 15477504 30955008