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30382240 = 255727127
BaseRepresentation
bin111001111100…
…1100010100000
32010011120121011
41303321202200
530234212430
63003110304
7516146650
oct163714240
963146534
1030382240
1116171699
12a212394
1363a9c75
14406c360
152a0222a
hex1cf98a0

30382240 has 48 divisors (see below), whose sum is σ = 82035072. Its totient is φ = 10416384.

The previous prime is 30382237. The next prime is 30382259. The reversal of 30382240 is 4228303.

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, 12444 + ... + 14683.

It is an arithmetic number, because the mean of its divisors is an integer number (1709064).

Almost surely, 230382240 is an apocalyptic number.

It is an amenable number.

30382240 is an abundant number, since it is smaller than the sum of its proper divisors (51652832).

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

30382240 is a wasteful number, since it uses less digits than its factorization.

30382240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27149 (or 27141 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 30382240 is about 5512.0087082660. The cubic root of 30382240 is about 312.0373612940.

The spelling of 30382240 in words is "thirty million, three hundred eighty-two thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 27127 54254 108508 135635 189889 217016 271270 379778 434032 542540 759556 868064 949445 1085080 1519112 1898890 2170160 3038224 3797780 4340320 6076448 7595560 15191120 30382240