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19482642 = 2321082369
BaseRepresentation
bin100101001010…
…0100000010010
31100122211011100
41022110200102
514441421032
61533325230
7324412464
oct112244022
940584140
1019482642
11aaa7663
126636816
134061aba
142832134
151a9c97c
hex1294812

19482642 has 12 divisors (see below), whose sum is σ = 42212430. Its totient is φ = 6494208.

The previous prime is 19482637. The next prime is 19482647. The reversal of 19482642 is 24628491.

19482642 is a `hidden beast` number, since 1 + 9 + 4 + 8 + 2 + 642 = 666.

It is an interprime number because it is at equal distance from previous prime (19482637) and next prime (19482647).

It can be written as a sum of positive squares in only one way, i.e., 14907321 + 4575321 = 3861^2 + 2139^2 .

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 19482597 and 19482606.

It is not an unprimeable number, because it can be changed into a prime (19482647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 541167 + ... + 541202.

Almost surely, 219482642 is an apocalyptic number.

19482642 is an abundant number, since it is smaller than the sum of its proper divisors (22729788).

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

19482642 is a wasteful number, since it uses less digits than its factorization.

19482642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082377 (or 1082374 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 19482642 is about 4413.9145891147. The cubic root of 19482642 is about 269.0807421051.

The spelling of 19482642 in words is "nineteen million, four hundred eighty-two thousand, six hundred forty-two".

Divisors: 1 2 3 6 9 18 1082369 2164738 3247107 6494214 9741321 19482642