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64809414 = 2323600523
BaseRepresentation
bin1111011100111…
…0100111000110
311111221122210200
43313032213012
5113042400124
610233031330
71414604505
oct367164706
9144848720
1064809414
11336462aa
1219855546
1310572087
14887083c
155a52bc9
hex3dce9c6

64809414 has 12 divisors (see below), whose sum is σ = 140420436. Its totient is φ = 21603132.

The previous prime is 64809401. The next prime is 64809421. The reversal of 64809414 is 41490846.

It is a happy number.

64809414 is a `hidden beast` number, since 648 + 0 + 9 + 4 + 1 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1800244 + ... + 1800279.

It is an arithmetic number, because the mean of its divisors is an integer number (11701703).

Almost surely, 264809414 is an apocalyptic number.

64809414 is an abundant number, since it is smaller than the sum of its proper divisors (75611022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64809414 is a wasteful number, since it uses less digits than its factorization.

64809414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600531 (or 3600528 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 64809414 is about 8050.4294295398. The cubic root of 64809414 is about 401.6792198537.

The spelling of 64809414 in words is "sixty-four million, eight hundred nine thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 18 3600523 7201046 10801569 21603138 32404707 64809414