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497870889 = 3198734577
BaseRepresentation
bin11101101011001…
…110100000101001
31021200211110110120
4131223032200221
52004423332024
6121223033453
715223555425
oct3553164051
91250743416
10497870889
1123604284a
1211a89b889
137c1bac79
144a19db85
152da97479
hex1dace829

497870889 has 8 divisors (see below), whose sum is σ = 698766240. Its totient is φ = 314444736.

The previous prime is 497870873. The next prime is 497870897. The reversal of 497870889 is 988078794.

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

It is not a de Polignac number, because 497870889 - 24 = 497870873 is a prime.

It is a super-2 number, since 2×4978708892 = 495750844227300642, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (497870809) 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, 4367232 + ... + 4367345.

It is an arithmetic number, because the mean of its divisors is an integer number (87345780).

Almost surely, 2497870889 is an apocalyptic number.

It is an amenable number.

497870889 is a deficient number, since it is larger than the sum of its proper divisors (200895351).

497870889 is a wasteful number, since it uses less digits than its factorization.

497870889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8734599.

The product of its (nonzero) digits is 8128512, while the sum is 60.

The square root of 497870889 is about 22313.0206157750. The cubic root of 497870889 is about 792.5723387613.

The spelling of 497870889 in words is "four hundred ninety-seven million, eight hundred seventy thousand, eight hundred eighty-nine".

Divisors: 1 3 19 57 8734577 26203731 165956963 497870889