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2054915497 is a prime number
BaseRepresentation
bin111101001111011…
…1000010110101001
312022012200112010101
41322132320112221
513202024243442
6535523545401
7101631331165
oct17236702651
95265615111
102054915497
11964a45478
1249422b261
13269963c3b
14156cb1ca5
15c060dcb7
hex7a7b85a9

2054915497 has 2 divisors, whose sum is σ = 2054915498. Its totient is φ = 2054915496.

The previous prime is 2054915483. The next prime is 2054915503. The reversal of 2054915497 is 7945194502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1638306576 + 416608921 = 40476^2 + 20411^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054915497 - 227 = 1920697769 is a prime.

It is not a weakly prime, because it can be changed into another prime (2054915407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027457748 + 1027457749.

It is an arithmetic number, because the mean of its divisors is an integer number (1027457749).

Almost surely, 22054915497 is an apocalyptic number.

It is an amenable number.

2054915497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054915497 is an equidigital number, since it uses as much as digits as its factorization.

2054915497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 2054915497 is about 45331.1757734123. The cubic root of 2054915497 is about 1271.3486194673.

It can be divided in two parts, 20549 and 15497, that added together give a triangular number (36046 = T268).

The spelling of 2054915497 in words is "two billion, fifty-four million, nine hundred fifteen thousand, four hundred ninety-seven".