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20301244442 = 213774092133
BaseRepresentation
bin10010111010000011…
…000110100000011010
31221101211101001221022
4102322003012200122
5313034104310232
613154250042442
71316040505403
oct227203064032
957354331838
1020301244442
118678583476
123b26a19422
131bb6c1cc9b
14da83009aa
157dc423812
hex4ba0c681a

20301244442 has 8 divisors (see below), whose sum is σ = 30674143476. Its totient is φ = 10076529952.

The previous prime is 20301244429. The next prime is 20301244459. The reversal of 20301244442 is 24444210302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18997384561 + 1303859881 = 137831^2 + 36109^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37045793 + ... + 37046340.

Almost surely, 220301244442 is an apocalyptic number.

20301244442 is a deficient number, since it is larger than the sum of its proper divisors (10372899034).

20301244442 is a wasteful number, since it uses less digits than its factorization.

20301244442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74092272.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20301244442 its reverse (24444210302), we get a palindrome (44745454744).

The spelling of 20301244442 in words is "twenty billion, three hundred one million, two hundred forty-four thousand, four hundred forty-two".

Divisors: 1 2 137 274 74092133 148184266 10150622221 20301244442