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30103220 = 22571911317
BaseRepresentation
bin111001011010…
…1011010110100
32002122101212002
41302311122310
530201300340
62553114432
7513605330
oct162653264
962571762
1030103220
1115aa0aa4
12a0b8a18
13630cc74
143dd87c0
152999715
hex1cb56b4

30103220 has 48 divisors (see below), whose sum is σ = 76056960. Its totient is φ = 9777024.

The previous prime is 30103217. The next prime is 30103231. The reversal of 30103220 is 2230103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2999 + ... + 8318.

It is an arithmetic number, because the mean of its divisors is an integer number (1584520).

Almost surely, 230103220 is an apocalyptic number.

It is an amenable number.

30103220 is an abundant number, since it is smaller than the sum of its proper divisors (45953740).

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

30103220 is a wasteful number, since it uses less digits than its factorization.

30103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11352 (or 11350 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30103220 is about 5486.6401376434. The cubic root of 30103220 is about 311.0792077074.

Adding to 30103220 its reverse (2230103), we get a palindrome (32333323).

The spelling of 30103220 in words is "thirty million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 532 665 1330 2660 11317 22634 45268 56585 79219 113170 158438 215023 226340 316876 396095 430046 792190 860092 1075115 1505161 1584380 2150230 3010322 4300460 6020644 7525805 15051610 30103220