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65078413 = 363117923
BaseRepresentation
bin1111100001000…
…0010010001101
311112110022210121
43320100102031
5113130002123
610242504541
71420104661
oct370202215
9145408717
1065078413
113380a414
1219965151
131063764a
1489008a1
155aa775d
hex3e1048d

65078413 has 4 divisors (see below), whose sum is σ = 65099968. Its totient is φ = 65056860.

The previous prime is 65078411. The next prime is 65078423. The reversal of 65078413 is 31487056.

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 65078413 - 21 = 65078411 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 (65078411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5331 + ... + 12592.

It is an arithmetic number, because the mean of its divisors is an integer number (16274992).

Almost surely, 265078413 is an apocalyptic number.

It is an amenable number.

65078413 is a deficient number, since it is larger than the sum of its proper divisors (21555).

65078413 is a wasteful number, since it uses less digits than its factorization.

65078413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21554.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 65078413 is about 8067.1192503892. The cubic root of 65078413 is about 402.2341914872.

The spelling of 65078413 in words is "sixty-five million, seventy-eight thousand, four hundred thirteen".

Divisors: 1 3631 17923 65078413