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65967413 = 613373209
BaseRepresentation
bin1111101110100…
…1010100110101
311121010111021112
43323221110311
5113341424123
610313524405
71430466551
oct373512465
9147114245
1065967413
1134267326
121a113705
1310889195
148a92861
155bd0d78
hex3ee9535

65967413 has 8 divisors (see below), whose sum is σ = 67268760. Its totient is φ = 64673280.

The previous prime is 65967409. The next prime is 65967437. The reversal of 65967413 is 31476956.

It can be written as a sum of positive squares in 4 ways, for example, as 529 + 65966884 = 23^2 + 8122^2 .

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 65967413 - 22 = 65967409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65967403) 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, 18953 + ... + 22161.

It is an arithmetic number, because the mean of its divisors is an integer number (8408595).

Almost surely, 265967413 is an apocalyptic number.

It is an amenable number.

65967413 is a deficient number, since it is larger than the sum of its proper divisors (1301347).

65967413 is a wasteful number, since it uses less digits than its factorization.

65967413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607.

The product of its digits is 136080, while the sum is 41.

The square root of 65967413 is about 8122.0325658052. The cubic root of 65967413 is about 404.0574800579.

The spelling of 65967413 in words is "sixty-five million, nine hundred sixty-seven thousand, four hundred thirteen".

Divisors: 1 61 337 3209 20557 195749 1081433 65967413