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233212330 = 25131793941
BaseRepresentation
bin11011110011010…
…00100110101010
3121020211102011201
431321220212222
5434200243310
635050314414
75531162221
oct1571504652
9536742151
10233212330
1110a70796a
1266128a0a
1339415480
1422d89cb8
1515719e3a
hexde689aa

233212330 has 16 divisors (see below), whose sum is σ = 452073384. Its totient is φ = 86109120.

The previous prime is 233212313. The next prime is 233212361. The reversal of 233212330 is 33212332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 184226329 + 48986001 = 13573^2 + 6999^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233212298 and 233212307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896841 + ... + 897100.

Almost surely, 2233212330 is an apocalyptic number.

233212330 is a deficient number, since it is larger than the sum of its proper divisors (218861054).

233212330 is a wasteful number, since it uses less digits than its factorization.

233212330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793961.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 233212330 is about 15271.2910390707. The cubic root of 233212330 is about 615.5318113474.

Adding to 233212330 its reverse (33212332), we get a palindrome (266424662).

It can be divided in two parts, 23321 and 2330, that added together give a triangular number (25651 = T226).

The spelling of 233212330 in words is "two hundred thirty-three million, two hundred twelve thousand, three hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1793941 3587882 8969705 17939410 23321233 46642466 116606165 233212330