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19425302401 = 371153455341
BaseRepresentation
bin10010000101110101…
…101001011110000001
31212010210010121100111
4102011311221132001
5304240334134101
612531315351321
71255243226461
oct220565513601
955123117314
1019425302401
11826909322a
1239215b2541
131aa75caa9b
14d23c47ba1
1578a59a251
hex485d69781

19425302401 has 8 divisors (see below), whose sum is σ = 19967657384. Its totient is φ = 18883860480.

The previous prime is 19425302389. The next prime is 19425302411. The reversal of 19425302401 is 10420352491.

It can be written as a sum of positive squares in 4 ways, for example, as 11437233025 + 7988069376 = 106945^2 + 89376^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-19425302401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19425302411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185010 + ... + 270331.

It is an arithmetic number, because the mean of its divisors is an integer number (2495957173).

Almost surely, 219425302401 is an apocalyptic number.

It is an amenable number.

19425302401 is a deficient number, since it is larger than the sum of its proper divisors (542354983).

19425302401 is a wasteful number, since it uses less digits than its factorization.

19425302401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456531.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 19425302401 its reverse (10420352491), we get a palindrome (29845654892).

The spelling of 19425302401 in words is "nineteen billion, four hundred twenty-five million, three hundred two thousand, four hundred one".

Divisors: 1 37 1153 42661 455341 16847617 525008173 19425302401