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30275300 = 225211171619
BaseRepresentation
bin111001101111…
…1011011100100
32002222010220102
41303133123210
530222302200
63000523232
7515223116
oct163373344
962863812
1030275300
11160a9310
12a180518
1363703a3
1440413b6
1529d06d5
hex1cdf6e4

30275300 has 72 divisors (see below), whose sum is σ = 75932640. Its totient is φ = 10355200.

The previous prime is 30275293. The next prime is 30275347. The reversal of 30275300 is 357203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17891 + ... + 19509.

It is an arithmetic number, because the mean of its divisors is an integer number (1054620).

Almost surely, 230275300 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 30275300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37966320).

30275300 is an abundant number, since it is smaller than the sum of its proper divisors (45657340).

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

30275300 is a wasteful number, since it uses less digits than its factorization.

30275300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 30275300 is about 5502.2995192919. The cubic root of 30275300 is about 311.6708258506.

The spelling of 30275300 in words is "thirty million, two hundred seventy-five thousand, three hundred".

Divisors: 1 2 4 5 10 11 17 20 22 25 34 44 50 55 68 85 100 110 170 187 220 275 340 374 425 550 748 850 935 1100 1619 1700 1870 3238 3740 4675 6476 8095 9350 16190 17809 18700 27523 32380 35618 40475 55046 71236 80950 89045 110092 137615 161900 178090 275230 302753 356180 445225 550460 605506 688075 890450 1211012 1376150 1513765 1780900 2752300 3027530 6055060 7568825 15137650 30275300