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231030424 = 23196124917
BaseRepresentation
bin11011100010100…
…11111010011000
3121002201120011101
431301103322120
5433120433144
634531441144
75503504042
oct1561237230
9532646141
10231030424
11109457639
12654561b4
1338b302c1
142297ca92
15154386d4
hexdc53e98

231030424 has 32 divisors (see below), whose sum is σ = 463474800. Its totient is φ = 107637120.

The previous prime is 231030413. The next prime is 231030433. The reversal of 231030424 is 424030132.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

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, 3187 + ... + 21730.

Almost surely, 2231030424 is an apocalyptic number.

It is an amenable number.

231030424 is an abundant number, since it is smaller than the sum of its proper divisors (232444376).

231030424 is a wasteful number, since it uses less digits than its factorization.

231030424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25003 (or 24999 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 231030424 is about 15199.6849967360. The cubic root of 231030424 is about 613.6061800635.

Adding to 231030424 its reverse (424030132), we get a palindrome (655060556).

The spelling of 231030424 in words is "two hundred thirty-one million, thirty thousand, four hundred twenty-four".

Divisors: 1 2 4 8 19 38 61 76 122 152 244 488 1159 2318 4636 9272 24917 49834 99668 199336 473423 946846 1519937 1893692 3039874 3787384 6079748 12159496 28878803 57757606 115515212 231030424