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64013974 = 2154920663
BaseRepresentation
bin1111010000110…
…0011010010110
311110110020122221
43310030122112
5112341421344
610204012554
71405052443
oct364143226
9143406587
1064013974
1133152712
121953115a
1310353cbb
1487049ca
155947184
hex3d0c696

64013974 has 8 divisors (see below), whose sum is σ = 96087600. Its totient is φ = 31984776.

The previous prime is 64013951. The next prime is 64013981. The reversal of 64013974 is 47931046.

It is a happy number.

64013974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7234 + ... + 13429.

It is an arithmetic number, because the mean of its divisors is an integer number (12010950).

Almost surely, 264013974 is an apocalyptic number.

64013974 is a deficient number, since it is larger than the sum of its proper divisors (32073626).

64013974 is a wasteful number, since it uses less digits than its factorization.

64013974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22214.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 64013974 is about 8000.8733273312. The cubic root of 64013974 is about 400.0291103814.

The spelling of 64013974 in words is "sixty-four million, thirteen thousand, nine hundred seventy-four".

Divisors: 1 2 1549 3098 20663 41326 32006987 64013974