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64914061 = 197433761
BaseRepresentation
bin1111011110100…
…0001010001101
311112010222100111
43313220022031
5113104222221
610235200021
71415521552
oct367501215
9145128314
1064914061
1133707993
12198a6011
13105aa8b4
14889aa29
155a73be1
hex3de828d

64914061 has 8 divisors (see below), whose sum is σ = 65480184. Its totient is φ = 64350720.

The previous prime is 64914043. The next prime is 64914079. The reversal of 64914061 is 16041946.

It is an interprime number because it is at equal distance from previous prime (64914043) and next prime (64914079).

It can be written as a sum of positive squares in 4 ways, for example, as 1010025 + 63904036 = 1005^2 + 7994^2 .

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 64914061 - 29 = 64913549 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 (64914001) 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, 84921 + ... + 85681.

It is an arithmetic number, because the mean of its divisors is an integer number (8185023).

Almost surely, 264914061 is an apocalyptic number.

It is an amenable number.

64914061 is a deficient number, since it is larger than the sum of its proper divisors (566123).

64914061 is a wasteful number, since it uses less digits than its factorization.

64914061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 64914061 is about 8056.9262749513. The cubic root of 64914061 is about 401.8952991689.

The spelling of 64914061 in words is "sixty-four million, nine hundred fourteen thousand, sixty-one".

Divisors: 1 197 433 761 85301 149917 329513 64914061