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30248000 = 265319199
BaseRepresentation
bin111001101100…
…0110001000000
32002220202110022
41303120301000
530220414000
63000153012
7515050406
oct163306100
962822408
1030248000
111608a852
12a168768
136360b33
144035476
1529c7585
hex1cd8c40

30248000 has 112 divisors (see below), whose sum is σ = 79248000. Its totient is φ = 11404800.

The previous prime is 30247993. The next prime is 30248003. The reversal of 30248000 is 84203.

It is a self number, because there is not a number n which added to its sum of digits gives 30248000.

It is not an unprimeable number, because it can be changed into a prime (30248003) 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, 151901 + ... + 152099.

Almost surely, 230248000 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 30248000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39624000).

30248000 is an abundant number, since it is smaller than the sum of its proper divisors (49000000).

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

30248000 is a wasteful number, since it uses less digits than its factorization.

30248000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 30248000 is about 5499.8181788128. The cubic root of 30248000 is about 311.5771172025.

The spelling of 30248000 in words is "thirty million, two hundred forty-eight thousand".

Divisors: 1 2 4 5 8 10 16 19 20 25 32 38 40 50 64 76 80 95 100 125 152 160 190 199 200 250 304 320 380 398 400 475 500 608 760 796 800 950 995 1000 1216 1520 1592 1600 1900 1990 2000 2375 3040 3184 3781 3800 3980 4000 4750 4975 6080 6368 7562 7600 7960 8000 9500 9950 12736 15124 15200 15920 18905 19000 19900 24875 30248 30400 31840 37810 38000 39800 49750 60496 63680 75620 76000 79600 94525 99500 120992 151240 152000 159200 189050 199000 241984 302480 318400 378100 398000 472625 604960 756200 796000 945250 1209920 1512400 1592000 1890500 3024800 3781000 6049600 7562000 15124000 30248000