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64132441 = 232788367
BaseRepresentation
bin1111010010100…
…1010101011001
311110200021011121
43310221111121
5112404214231
610210325241
71406055022
oct364512531
9143607147
1064132441
113322371a
1219589821
1310395bb9
148735c49
15596c311
hex3d29559

64132441 has 4 divisors (see below), whose sum is σ = 66920832. Its totient is φ = 61344052.

The previous prime is 64132399. The next prime is 64132447. The reversal of 64132441 is 14423146.

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 64132441 - 221 = 62035289 is a prime.

It is a super-2 number, since 2×641324412 = 8225939977236962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64132447) 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, 1394161 + ... + 1394206.

It is an arithmetic number, because the mean of its divisors is an integer number (16730208).

Almost surely, 264132441 is an apocalyptic number.

It is an amenable number.

64132441 is a deficient number, since it is larger than the sum of its proper divisors (2788391).

64132441 is a wasteful number, since it uses less digits than its factorization.

64132441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788390.

The product of its digits is 2304, while the sum is 25.

The square root of 64132441 is about 8008.2732845477. The cubic root of 64132441 is about 400.2757286406.

Adding to 64132441 its reverse (14423146), we get a palindrome (78555587).

The spelling of 64132441 in words is "sixty-four million, one hundred thirty-two thousand, four hundred forty-one".

Divisors: 1 23 2788367 64132441