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30863336 = 2372431831
BaseRepresentation
bin111010110111…
…0111111101000
32011002000112112
41311232333220
530400111321
63021301452
7523222400
oct165567750
964060475
1030863336
1116470099
12a404888
136517c3a
144155800
152a99a5b
hex1d6efe8

30863336 has 48 divisors (see below), whose sum is σ = 68919840. Its totient is φ = 12912480.

The previous prime is 30863333. The next prime is 30863341. The reversal of 30863336 is 63336803.

It is not an unprimeable number, because it can be changed into a prime (30863333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15941 + ... + 17771.

It is an arithmetic number, because the mean of its divisors is an integer number (1435830).

Almost surely, 230863336 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 30863336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34459920).

30863336 is an abundant number, since it is smaller than the sum of its proper divisors (38056504).

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

30863336 is a wasteful number, since it uses less digits than its factorization.

30863336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894 (or 1883 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 30863336 is about 5555.4780172367. The cubic root of 30863336 is about 313.6757576328.

The spelling of 30863336 in words is "thirty million, eight hundred sixty-three thousand, three hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 43 49 56 86 98 172 196 301 344 392 602 1204 1831 2107 2408 3662 4214 7324 8428 12817 14648 16856 25634 51268 78733 89719 102536 157466 179438 314932 358876 551131 629864 717752 1102262 2204524 3857917 4409048 7715834 15431668 30863336