Search a number
-
+
270988493 is a prime number
BaseRepresentation
bin10000001001101…
…111010011001101
3200212220122022212
4100021233103031
51023333112433
642520120205
76500235626
oct2011572315
9625818285
10270988493
11129a69736
1276906065
13441b0a29
1427dc0a4d
1518bccd48
hex1026f4cd

270988493 has 2 divisors, whose sum is σ = 270988494. Its totient is φ = 270988492.

The previous prime is 270988463. The next prime is 270988513. The reversal of 270988493 is 394889072.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179077924 + 91910569 = 13382^2 + 9587^2 .

It is a cyclic number.

It is not a de Polignac number, because 270988493 - 26 = 270988429 is a prime.

It is a super-2 number, since 2×2709884932 = 146869526676822098, 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 (270988433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135494246 + 135494247.

It is an arithmetic number, because the mean of its divisors is an integer number (135494247).

Almost surely, 2270988493 is an apocalyptic number.

It is an amenable number.

270988493 is a deficient number, since it is larger than the sum of its proper divisors (1).

270988493 is an equidigital number, since it uses as much as digits as its factorization.

270988493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 270988493 is about 16461.7281292093. The cubic root of 270988493 is about 647.1182032865.

The spelling of 270988493 in words is "two hundred seventy million, nine hundred eighty-eight thousand, four hundred ninety-three".