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870384001 = 7911017519
BaseRepresentation
bin110011111000010…
…000000110000001
32020122210002101111
4303320100012001
53240304242001
6222211203321
730366066454
oct6370200601
92218702344
10870384001
11407344423
122035a6541
1310b427426
148384b49b
155162b851
hex33e10181

870384001 has 4 divisors (see below), whose sum is σ = 881401600. Its totient is φ = 859366404.

The previous prime is 870383953. The next prime is 870384017. The reversal of 870384001 is 100483078.

It is a happy number.

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: 100483078 = 250241539.

It is a cyclic number.

It is not a de Polignac number, because 870384001 - 219 = 869859713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870385001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5508681 + ... + 5508838.

It is an arithmetic number, because the mean of its divisors is an integer number (220350400).

Almost surely, 2870384001 is an apocalyptic number.

It is an amenable number.

870384001 is a deficient number, since it is larger than the sum of its proper divisors (11017599).

870384001 is a wasteful number, since it uses less digits than its factorization.

870384001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11017598.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 870384001 is about 29502.2711159666. The cubic root of 870384001 is about 954.7807034639.

The spelling of 870384001 in words is "eight hundred seventy million, three hundred eighty-four thousand, one".

Divisors: 1 79 11017519 870384001