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64406135 = 518171167
BaseRepresentation
bin1111010110110…
…0001001110111
311111012011121102
43311230021313
5112441444020
610220240315
71411304663
oct365541167
9144164542
1064406135
11333a0312
12196a009b
1310460651
1487a78a3
1559c3475
hex3d6c277

64406135 has 8 divisors (see below), whose sum is σ = 77715456. Its totient is φ = 51239520.

The previous prime is 64406119. The next prime is 64406137. The reversal of 64406135 is 53160446.

It is a happy number.

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

It is not a de Polignac number, because 64406135 - 24 = 64406119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64406098 and 64406107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64406137) 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, 34679 + ... + 36488.

It is an arithmetic number, because the mean of its divisors is an integer number (9714432).

Almost surely, 264406135 is an apocalyptic number.

64406135 is a deficient number, since it is larger than the sum of its proper divisors (13309321).

64406135 is a wasteful number, since it uses less digits than its factorization.

64406135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71353.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 64406135 is about 8025.3432948379. The cubic root of 64406135 is about 400.8443310919.

The spelling of 64406135 in words is "sixty-four million, four hundred six thousand, one hundred thirty-five".

Divisors: 1 5 181 905 71167 355835 12881227 64406135