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64006203361 = 232782878407
BaseRepresentation
bin111011100111000100…
…010010011111100001
320010012200222000121111
4323213010102133201
52022041042001421
645223135023321
74424063515612
oct734704223741
9203180860544
1064006203361
1125165918a31
12104a366ab41
136060741319
14315297dc09
1519e9300ee1
hexee71127e1

64006203361 has 4 divisors (see below), whose sum is σ = 66789081792. Its totient is φ = 61223324932.

The previous prime is 64006203343. The next prime is 64006203383. The reversal of 64006203361 is 16330260046.

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.

It is a cyclic number.

It is not a de Polignac number, because 64006203361 - 25 = 64006203329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64006203301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391439181 + ... + 1391439226.

It is an arithmetic number, because the mean of its divisors is an integer number (16697270448).

Almost surely, 264006203361 is an apocalyptic number.

It is an amenable number.

64006203361 is a deficient number, since it is larger than the sum of its proper divisors (2782878431).

64006203361 is a wasteful number, since it uses less digits than its factorization.

64006203361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782878430.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 64006203361 in words is "sixty-four billion, six million, two hundred three thousand, three hundred sixty-one".

Divisors: 1 23 2782878407 64006203361