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30228498 = 2332997199
BaseRepresentation
bin111001101010…
…0000000010010
32002212202201000
41303110000102
530214302443
62555522430
7514636506
oct163240022
962782630
1030228498
1116077133
12a159416
136354cb1
14402c306
1529c18d3
hex1cd4012

30228498 has 64 divisors (see below), whose sum is σ = 70560000. Its totient is φ = 9580032.

The previous prime is 30228491. The next prime is 30228511. The reversal of 30228498 is 89482203.

It is not an unprimeable number, because it can be changed into a prime (30228491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151803 + ... + 152001.

It is an arithmetic number, because the mean of its divisors is an integer number (1102500).

Almost surely, 230228498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30228498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35280000).

30228498 is an abundant number, since it is smaller than the sum of its proper divisors (40331502).

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

30228498 is a wasteful number, since it uses less digits than its factorization.

30228498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 30228498 is about 5498.0449252439. The cubic root of 30228498 is about 311.5101410575.

The spelling of 30228498 in words is "thirty million, two hundred twenty-eight thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 9 18 27 29 54 58 87 97 174 194 199 261 291 398 522 582 597 783 873 1194 1566 1746 1791 2619 2813 3582 5238 5373 5626 5771 8439 10746 11542 16878 17313 19303 25317 34626 38606 50634 51939 57909 75951 103878 115818 151902 155817 173727 311634 347454 521181 559787 1042362 1119574 1679361 3358722 5038083 10076166 15114249 30228498