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52312208465 = 5113892445067
BaseRepresentation
bin110000101110000011…
…001111010001010001
312000000201122112100102
4300232003033101101
51324113411132330
640010520102145
73531226302206
oct605603172121
9160021575312
1052312208465
1120204972540
12a17b304955
134c18acaa0a
142763859cad
151562878945
hexc2e0cf451

52312208465 has 16 divisors (see below), whose sum is σ = 68657509440. Its totient is φ = 37947424320.

The previous prime is 52312208449. The next prime is 52312208471. The reversal of 52312208465 is 56480221325.

It is a happy number.

It is not a de Polignac number, because 52312208465 - 24 = 52312208449 is a prime.

It is a Curzon 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, 1201139 + ... + 1243928.

It is an arithmetic number, because the mean of its divisors is an integer number (4291094340).

Almost surely, 252312208465 is an apocalyptic number.

52312208465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52312208465 is a deficient number, since it is larger than the sum of its proper divisors (16345300975).

52312208465 is a wasteful number, since it uses less digits than its factorization.

52312208465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445472.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 52312208465 in words is "fifty-two billion, three hundred twelve million, two hundred eight thousand, four hundred sixty-five".

Divisors: 1 5 11 55 389 1945 4279 21395 2445067 12225335 26895737 134478685 951131063 4755655315 10462441693 52312208465