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65000407 = 250325969
BaseRepresentation
bin1111011111110…
…1001111010111
311112022100210111
43313331033113
5113120003112
610241103451
71416331363
oct367751727
9145270714
1065000407
113376684a
1219927b87
131060aca4
1488c02a3
155a8e5a7
hex3dfd3d7

65000407 has 4 divisors (see below), whose sum is σ = 65028880. Its totient is φ = 64971936.

The previous prime is 65000399. The next prime is 65000437. The reversal of 65000407 is 70400056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65000407 - 23 = 65000399 is a prime.

It is a Duffinian number.

65000407 is a modest number, since divided by 407 gives 65 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65000437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10482 + ... + 15487.

It is an arithmetic number, because the mean of its divisors is an integer number (16257220).

Almost surely, 265000407 is an apocalyptic number.

65000407 is a deficient number, since it is larger than the sum of its proper divisors (28473).

65000407 is a wasteful number, since it uses less digits than its factorization.

65000407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28472.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 65000407 is about 8062.2829893275. The cubic root of 65000407 is about 402.0734150548.

The spelling of 65000407 in words is "sixty-five million, four hundred seven", and thus it is an aban number.

Divisors: 1 2503 25969 65000407