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30484160 = 265731439
BaseRepresentation
bin111010001001…
…0011011000000
32010100202101222
41310102123000
530300443120
63005214212
7520053050
oct164223300
963322358
1030484160
1116231223
12a261368
136414485
144097560
152a22525
hex1d126c0

30484160 has 112 divisors (see below), whose sum is σ = 85831680. Its totient is φ = 10091520.

The previous prime is 30484141. The next prime is 30484163. The reversal of 30484160 is 6148403.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (30484163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69221 + ... + 69659.

Almost surely, 230484160 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 30484160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42915840).

30484160 is an abundant number, since it is smaller than the sum of its proper divisors (55347520).

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

30484160 is a wasteful number, since it uses less digits than its factorization.

30484160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 30484160 is about 5521.2462361318. The cubic root of 30484160 is about 312.3858911384.

The spelling of 30484160 in words is "thirty million, four hundred eighty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 56 62 64 70 80 112 124 140 155 160 217 224 248 280 310 320 434 439 448 496 560 620 868 878 992 1085 1120 1240 1736 1756 1984 2170 2195 2240 2480 3073 3472 3512 4340 4390 4960 6146 6944 7024 8680 8780 9920 12292 13609 13888 14048 15365 17360 17560 24584 27218 28096 30730 34720 35120 49168 54436 61460 68045 69440 70240 95263 98336 108872 122920 136090 140480 190526 196672 217744 245840 272180 381052 435488 476315 491680 544360 762104 870976 952630 983360 1088720 1524208 1905260 2177440 3048416 3810520 4354880 6096832 7621040 15242080 30484160