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192271381 is a prime number
BaseRepresentation
bin10110111010111…
…01010000010101
3111101210101202021
423131131100111
5343210141011
631025013141
74523164651
oct1335352025
9441711667
10192271381
1199594375
12544841b1
1330aac563
141b76da61
1511d2e471
hexb75d415

192271381 has 2 divisors, whose sum is σ = 192271382. Its totient is φ = 192271380.

The previous prime is 192271369. The next prime is 192271433. The reversal of 192271381 is 183172291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137007025 + 55264356 = 11705^2 + 7434^2 .

It is a cyclic number.

It is not a de Polignac number, because 192271381 - 25 = 192271349 is a prime.

It is a super-2 number, since 2×1922713812 = 73936567903294322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192271301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96135690 + 96135691.

It is an arithmetic number, because the mean of its divisors is an integer number (96135691).

Almost surely, 2192271381 is an apocalyptic number.

It is an amenable number.

192271381 is a deficient number, since it is larger than the sum of its proper divisors (1).

192271381 is an equidigital number, since it uses as much as digits as its factorization.

192271381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 192271381 is about 13866.1956210058. The cubic root of 192271381 is about 577.1715051150.

The spelling of 192271381 in words is "one hundred ninety-two million, two hundred seventy-one thousand, three hundred eighty-one".