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231494424 = 233721011949
BaseRepresentation
bin11011100110001…
…01001100011000
3121010121010122120
431303011030120
5433230310144
634545421240
75510445600
oct1563051430
9533533576
10231494424
11109744207
126563a820
1338c63565
1422a5dc00
15154cae19
hexdcc5318

231494424 has 96 divisors (see below), whose sum is σ = 680238000. Its totient is φ = 65452800.

The previous prime is 231494383. The next prime is 231494479. The reversal of 231494424 is 424494132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117802 + ... + 119750.

Almost surely, 2231494424 is an apocalyptic number.

231494424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231494424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340119000).

231494424 is an abundant number, since it is smaller than the sum of its proper divisors (448743576).

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

231494424 is a wasteful number, since it uses less digits than its factorization.

231494424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073 (or 2062 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 231494424 is about 15214.9408148701. The cubic root of 231494424 is about 614.0166929151.

The spelling of 231494424 in words is "two hundred thirty-one million, four hundred ninety-four thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 84 98 101 147 168 196 202 294 303 392 404 588 606 707 808 1176 1212 1414 1949 2121 2424 2828 3898 4242 4949 5656 5847 7796 8484 9898 11694 13643 14847 15592 16968 19796 23388 27286 29694 39592 40929 46776 54572 59388 81858 95501 109144 118776 163716 191002 196849 286503 327432 382004 393698 573006 590547 764008 787396 1146012 1181094 1377943 1574792 2292024 2362188 2755886 4133829 4724376 5511772 8267658 9645601 11023544 16535316 19291202 28936803 33070632 38582404 57873606 77164808 115747212 231494424