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379874381 is a prime number
BaseRepresentation
bin10110101001000…
…110110001001101
3222110210121200112
4112221012301031
51234221440011
6101410005405
712261610325
oct2651066115
9873717615
10379874381
1118547a277
12a7276865
1360915c53
1438646285
152353a58b
hex16a46c4d

379874381 has 2 divisors, whose sum is σ = 379874382. Its totient is φ = 379874380.

The previous prime is 379874359. The next prime is 379874437. The reversal of 379874381 is 183478973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363512356 + 16362025 = 19066^2 + 4045^2 .

It is an emirp because it is prime and its reverse (183478973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 379874381 - 222 = 375680077 is a prime.

It is a super-2 number, since 2×3798743812 = 288609090680266322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379874311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189937190 + 189937191.

It is an arithmetic number, because the mean of its divisors is an integer number (189937191).

Almost surely, 2379874381 is an apocalyptic number.

It is an amenable number.

379874381 is a deficient number, since it is larger than the sum of its proper divisors (1).

379874381 is an equidigital number, since it uses as much as digits as its factorization.

379874381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 50.

The square root of 379874381 is about 19490.3663639245. The cubic root of 379874381 is about 724.2358216820.

The spelling of 379874381 in words is "three hundred seventy-nine million, eight hundred seventy-four thousand, three hundred eighty-one".