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30230250 = 2353172371
BaseRepresentation
bin111001101010…
…0011011101010
32002212212002220
41303110123222
530214332000
62555534510
7514644561
oct163243352
962785086
1030230250
1116078486
12a15a436
136355a2b
14402cbd8
1529c21a0
hex1cd46ea

30230250 has 64 divisors (see below), whose sum is σ = 79926912. Its totient is φ = 7584000.

The previous prime is 30230237. The next prime is 30230269. The reversal of 30230250 is 5203203.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11565 + ... + 13935.

It is an arithmetic number, because the mean of its divisors is an integer number (1248858).

Almost surely, 230230250 is an apocalyptic number.

30230250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30230250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39963456).

30230250 is an abundant number, since it is smaller than the sum of its proper divisors (49696662).

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

30230250 is a wasteful number, since it uses less digits than its factorization.

30230250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 30230250 is about 5498.2042522991. The cubic root of 30230250 is about 311.5161591669.

Adding to 30230250 its reverse (5203203), we get a palindrome (35433453).

The spelling of 30230250 in words is "thirty million, two hundred thirty thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 17 25 30 34 50 51 75 85 102 125 150 170 250 255 375 425 510 750 850 1275 2125 2371 2550 4250 4742 6375 7113 11855 12750 14226 23710 35565 40307 59275 71130 80614 118550 120921 177825 201535 241842 296375 355650 403070 592750 604605 889125 1007675 1209210 1778250 2015350 3023025 5038375 6046050 10076750 15115125 30230250