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9072000001 = 23937958159
BaseRepresentation
bin10000111001011101…
…11011110000000001
3212102020120100110001
420130232323300001
5122034413000001
64100112240001
7440545504411
oct103456736001
925366510401
109072000001
1139359a8969
121912240001
13b1766c24c
14620bd8641
153816a0001
hex21cbbbc01

9072000001 has 4 divisors (see below), whose sum is σ = 9109958400. Its totient is φ = 9034041604.

The previous prime is 9071999999. The next prime is 9072000031. The reversal of 9072000001 is 1000002709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1000002709 = 5571795337.

It is a cyclic number.

It is not a de Polignac number, because 9072000001 - 21 = 9071999999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9072000031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18978841 + ... + 18979318.

It is an arithmetic number, because the mean of its divisors is an integer number (2277489600).

Almost surely, 29072000001 is an apocalyptic number.

It is an amenable number.

9072000001 is a deficient number, since it is larger than the sum of its proper divisors (37958399).

9072000001 is a wasteful number, since it uses less digits than its factorization.

9072000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37958398.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 9072000001 is about 95247.0472035748. The cubic root of 9072000001 is about 2085.6159870085.

The spelling of 9072000001 in words is "nine billion, seventy-two million, one", and thus it is an aban number and an uban number.

Divisors: 1 239 37958159 9072000001