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378407396227 = 7271108769013
BaseRepresentation
bin1011000000110101101…
…01101010001110000011
31100011201212021110002011
411200122311222032003
522144434243134402
6445500555433351
736224200540300
oct5403265521603
91304655243064
10378407396227
11136533123613
1261407a55857
13298b701a313
141445a5900a7
159c9ae3eed7
hex581ad6a383

378407396227 has 12 divisors (see below), whose sum is σ = 446388033456. Its totient is φ = 319780895280.

The previous prime is 378407396161. The next prime is 378407396261. The reversal of 378407396227 is 722693704873.

It is a de Polignac number, because none of the positive numbers 2k-378407396227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378407396287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54381028 + ... + 54387985.

It is an arithmetic number, because the mean of its divisors is an integer number (37199002788).

Almost surely, 2378407396227 is an apocalyptic number.

378407396227 is a deficient number, since it is larger than the sum of its proper divisors (67980637229).

378407396227 is a wasteful number, since it uses less digits than its factorization.

378407396227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108769098 (or 108769091 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 58.

The spelling of 378407396227 in words is "three hundred seventy-eight billion, four hundred seven million, three hundred ninety-six thousand, two hundred twenty-seven".

Divisors: 1 7 49 71 497 3479 108769013 761383091 5329681637 7722599923 54058199461 378407396227