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65379656468 = 22722371914563
BaseRepresentation
bin111100111000111011…
…100110001100010100
320020202102100200002002
4330320323212030110
52032344143001333
650011320534432
74503111624230
oct747073461424
9206672320062
1065379656468
1125800125645
1210807621418
13621c156779
1432431415c0
151a79ba00e8
hexf38ee6314

65379656468 has 48 divisors (see below), whose sum is σ = 131537387520. Its totient is φ = 27853494624.

The previous prime is 65379656429. The next prime is 65379656471. The reversal of 65379656468 is 86465697356.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4482155 + ... + 4496717.

It is an arithmetic number, because the mean of its divisors is an integer number (2740362240).

Almost surely, 265379656468 is an apocalyptic number.

It is an amenable number.

65379656468 is an abundant number, since it is smaller than the sum of its proper divisors (66157731052).

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

65379656468 is a wasteful number, since it uses less digits than its factorization.

65379656468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15516 (or 15514 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 65.

The spelling of 65379656468 in words is "sixty-five billion, three hundred seventy-nine million, six hundred fifty-six thousand, four hundred sixty-eight".

Divisors: 1 2 4 7 14 28 223 446 719 892 1438 1561 2876 3122 5033 6244 10066 14563 20132 29126 58252 101941 160337 203882 320674 407764 641348 1122359 2244718 3247549 4489436 6495098 10470797 12990196 20941594 22732843 41883188 45465686 73295579 90931372 146591158 293182316 2334987731 4669975462 9339950924 16344914117 32689828234 65379656468