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1302420442 = 21975132971
BaseRepresentation
bin100110110100001…
…0101101111011010
310100202201210222011
41031220111233122
510131404423232
6333123220134
744163251101
oct11550255732
93322653864
101302420442
11609200834
1230421764a
13179aa48ab
14c4d91038
157951c547
hex4da15bda

1302420442 has 8 divisors (see below), whose sum is σ = 1953788832. Its totient is φ = 651157500.

The previous prime is 1302420419. The next prime is 1302420491. The reversal of 1302420442 is 2440242031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23017 + ... + 55987.

It is an arithmetic number, because the mean of its divisors is an integer number (244223604).

Almost surely, 21302420442 is an apocalyptic number.

1302420442 is a deficient number, since it is larger than the sum of its proper divisors (651368390).

1302420442 is a wasteful number, since it uses less digits than its factorization.

1302420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52724.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1302420442 is about 36089.0626367602. The cubic root of 1302420442 is about 1092.0698100835.

Adding to 1302420442 its reverse (2440242031), we get a palindrome (3742662473).

The spelling of 1302420442 in words is "one billion, three hundred two million, four hundred twenty thousand, four hundred forty-two".

Divisors: 1 2 19751 32971 39502 65942 651210221 1302420442