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380465428271 = 2395431588297
BaseRepresentation
bin1011000100101011000…
…00011011011100101111
31100101001021211022022012
411202111200123130233
522213143122201041
6450441114311435
736326200531565
oct5422540333457
91311037738265
10380465428271
111373998a7545
12618a112857b
1329b54502966
14145b3a33a35
159d6b9673eb
hex589581b72f

380465428271 has 4 divisors (see below), whose sum is σ = 380467256112. Its totient is φ = 380463600432.

The previous prime is 380465428249. The next prime is 380465428319. The reversal of 380465428271 is 172824564083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172824564083 = 295959467727.

It is a cyclic number.

It is not a de Polignac number, because 380465428271 - 218 = 380465166127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380465427271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554606 + ... + 1033691.

It is an arithmetic number, because the mean of its divisors is an integer number (95116814028).

Almost surely, 2380465428271 is an apocalyptic number.

380465428271 is a deficient number, since it is larger than the sum of its proper divisors (1827841).

380465428271 is a wasteful number, since it uses less digits than its factorization.

380465428271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827840.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 380465428271 in words is "three hundred eighty billion, four hundred sixty-five million, four hundred twenty-eight thousand, two hundred seventy-one".

Divisors: 1 239543 1588297 380465428271