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65049897 = 3111971209
BaseRepresentation
bin1111100000100…
…1010100101001
311112101212200110
43320021110221
5113123044042
610242124533
71416625563
oct370112451
9145355613
1065049897
113379aa50
1219950749
1310627683
1488d4333
155a9e09c
hex3e09529

65049897 has 8 divisors (see below), whose sum is σ = 94618080. Its totient is φ = 39424160.

The previous prime is 65049893. The next prime is 65049899. The reversal of 65049897 is 79894056.

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 65049897 - 22 = 65049893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65049893) 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, 985572 + ... + 985637.

It is an arithmetic number, because the mean of its divisors is an integer number (11827260).

Almost surely, 265049897 is an apocalyptic number.

It is an amenable number.

65049897 is a deficient number, since it is larger than the sum of its proper divisors (29568183).

65049897 is a wasteful number, since it uses less digits than its factorization.

65049897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971223.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 65049897 is about 8065.3516352358. The cubic root of 65049897 is about 402.1754326996.

The spelling of 65049897 in words is "sixty-five million, forty-nine thousand, eight hundred ninety-seven".

Divisors: 1 3 11 33 1971209 5913627 21683299 65049897