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230431330 = 2535964187
BaseRepresentation
bin11011011110000…
…01101001100010
3121001121010100201
431233001221202
5432442300310
634510535414
75465430313
oct1557015142
9531533321
10230431330
11109088518
126520756a
13389806cc
142286460a
151536ae3a
hexdbc1a62

230431330 has 16 divisors (see below), whose sum is σ = 415938240. Its totient is φ = 91914352.

The previous prime is 230431321. The next prime is 230431337. The reversal of 230431330 is 33134032.

230431330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 230431298 and 230431307.

It is not an unprimeable number, because it can be changed into a prime (230431337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28504 + ... + 35683.

It is an arithmetic number, because the mean of its divisors is an integer number (25996140).

Almost surely, 2230431330 is an apocalyptic number.

230431330 is a deficient number, since it is larger than the sum of its proper divisors (185506910).

230431330 is a wasteful number, since it uses less digits than its factorization.

230431330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64553.

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

The square root of 230431330 is about 15179.9647562173. The cubic root of 230431330 is about 613.0753322417.

Adding to 230431330 its reverse (33134032), we get a palindrome (263565362).

The spelling of 230431330 in words is "two hundred thirty million, four hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 359 718 1795 3590 64187 128374 320935 641870 23043133 46086266 115215665 230431330