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19630424 = 2311376029
BaseRepresentation
bin100101011100…
…0100101011000
31100221022212202
41022320211120
520011133144
61540425332
7325566362
oct112704530
940838782
1019630424
11100986a0
1266a8248
1340b4148
14286dd32
151acb64e
hex12b8958

19630424 has 32 divisors (see below), whose sum is σ = 41245200. Its totient is φ = 8680320.

The previous prime is 19630423. The next prime is 19630433. The reversal of 19630424 is 42403691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19630423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242 + ... + 6270.

Almost surely, 219630424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19630424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20622600).

19630424 is an abundant number, since it is smaller than the sum of its proper divisors (21614776).

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

19630424 is a wasteful number, since it uses less digits than its factorization.

19630424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083 (or 6079 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 19630424 is about 4430.6234324302. The cubic root of 19630424 is about 269.7593832548.

The spelling of 19630424 in words is "nineteen million, six hundred thirty thousand, four hundred twenty-four".

Divisors: 1 2 4 8 11 22 37 44 74 88 148 296 407 814 1628 3256 6029 12058 24116 48232 66319 132638 223073 265276 446146 530552 892292 1784584 2453803 4907606 9815212 19630424