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1257300223 is a prime number
BaseRepresentation
bin100101011110000…
…1110000011111111
310020121211110122221
41022330032003333
510033332101343
6324432150211
743104606214
oct11274160377
93217743587
101257300223
115957932a3
122b1098367
1317063763a
14bcda7b0b
15755a85ed
hex4af0e0ff

1257300223 has 2 divisors, whose sum is σ = 1257300224. Its totient is φ = 1257300222.

The previous prime is 1257300203. The next prime is 1257300269. The reversal of 1257300223 is 3220037521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1257300223 - 221 = 1255203071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1257300203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628650111 + 628650112.

It is an arithmetic number, because the mean of its divisors is an integer number (628650112).

Almost surely, 21257300223 is an apocalyptic number.

1257300223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257300223 is an equidigital number, since it uses as much as digits as its factorization.

1257300223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 1257300223 is about 35458.4295055492. The cubic root of 1257300223 is about 1079.3103229904.

Adding to 1257300223 its reverse (3220037521), we get a palindrome (4477337744).

The spelling of 1257300223 in words is "one billion, two hundred fifty-seven million, three hundred thousand, two hundred twenty-three".