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233030220 = 223517228461
BaseRepresentation
bin11011110001111…
…00001001001100
3121020111011100220
431320330021030
5434123431340
635042351340
75526503253
oct1570741114
9536434326
10233030220
1110a5a3065
126605b550
1339380607
1422d3d79a
15156d0ed0
hexde3c24c

233030220 has 48 divisors (see below), whose sum is σ = 690869088. Its totient is φ = 58485760.

The previous prime is 233030207. The next prime is 233030251. The reversal of 233030220 is 22030332.

233030220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 233030220.

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, 113211 + ... + 115250.

It is an arithmetic number, because the mean of its divisors is an integer number (14393106).

Almost surely, 2233030220 is an apocalyptic number.

233030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233030220 is an abundant number, since it is smaller than the sum of its proper divisors (457838868).

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

233030220 is a wasteful number, since it uses less digits than its factorization.

233030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228490 (or 228488 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 233030220 is about 15265.3273793915. The cubic root of 233030220 is about 615.3715515416.

Adding to 233030220 its reverse (22030332), we get a palindrome (255060552).

The spelling of 233030220 in words is "two hundred thirty-three million, thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 228461 456922 685383 913844 1142305 1370766 2284610 2741532 3426915 3883837 4569220 6853830 7767674 11651511 13707660 15535348 19419185 23303022 38838370 46606044 58257555 77676740 116515110 233030220