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225381761867 = 1923350910721
BaseRepresentation
bin1101000111100111001…
…1001100001101001011
3210112202020112210010202
43101321303030031023
512143040212334432
6251312225202415
722166112236513
oct3217163141513
9715666483122
10225381761867
11876471465a9
123781ba9040b
131833a97c792
14aca1042843
155ce1906462
hex3479ccc34b

225381761867 has 8 divisors (see below), whose sum is σ = 238262178960. Its totient is φ = 212603166720.

The previous prime is 225381761861. The next prime is 225381761879. The reversal of 225381761867 is 768167183522.

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

It is a cyclic number.

It is not a de Polignac number, because 225381761867 - 210 = 225381760843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225381761861) 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, 25450934 + ... + 25459787.

It is an arithmetic number, because the mean of its divisors is an integer number (29782772370).

Almost surely, 2225381761867 is an apocalyptic number.

225381761867 is a deficient number, since it is larger than the sum of its proper divisors (12880417093).

225381761867 is a wasteful number, since it uses less digits than its factorization.

225381761867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50910973.

The product of its digits is 6773760, while the sum is 56.

The spelling of 225381761867 in words is "two hundred twenty-five billion, three hundred eighty-one million, seven hundred sixty-one thousand, eight hundred sixty-seven".

Divisors: 1 19 233 4427 50910721 967303699 11862197993 225381761867