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64377005 = 5711167213
BaseRepresentation
bin1111010110010…
…1000010101101
311111010200122112
43311211002231
5112440031010
610215453405
71411124030
oct365450255
9144120575
1064377005
1133380440
1219687265
1310450304
14879b017
1559b9a05
hex3d650ad

64377005 has 16 divisors (see below), whose sum is σ = 96315264. Its totient is φ = 40130880.

The previous prime is 64376999. The next prime is 64377029. The reversal of 64377005 is 50077346.

It is not a de Polignac number, because 64377005 - 216 = 64311469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83222 + ... + 83991.

It is an arithmetic number, because the mean of its divisors is an integer number (6019704).

Almost surely, 264377005 is an apocalyptic number.

It is an amenable number.

64377005 is a deficient number, since it is larger than the sum of its proper divisors (31938259).

64377005 is a wasteful number, since it uses less digits than its factorization.

64377005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167236.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 64377005 is about 8023.5282139468. The cubic root of 64377005 is about 400.7838898715.

The spelling of 64377005 in words is "sixty-four million, three hundred seventy-seven thousand, five".

Divisors: 1 5 7 11 35 55 77 385 167213 836065 1170491 1839343 5852455 9196715 12875401 64377005