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1230552469 is a prime number
BaseRepresentation
bin100100101011000…
…1011110110010101
310011202111112122101
41021112023312111
510010010134334
6322035002101
742331344346
oct11126136625
93152445571
101230552469
11581684313
122a4139331
13167c30a73
14b96040cd
1573073214
hex4958bd95

1230552469 has 2 divisors, whose sum is σ = 1230552470. Its totient is φ = 1230552468.

The previous prime is 1230552383. The next prime is 1230552487. The reversal of 1230552469 is 9642550321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1150091569 + 80460900 = 33913^2 + 8970^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230552469 - 215 = 1230519701 is a prime.

It is a super-2 number, since 2×12305524692 = 3028518757923991922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230550469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615276234 + 615276235.

It is an arithmetic number, because the mean of its divisors is an integer number (615276235).

Almost surely, 21230552469 is an apocalyptic number.

It is an amenable number.

1230552469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230552469 is an equidigital number, since it uses as much as digits as its factorization.

1230552469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1230552469 is about 35079.2313057171. The cubic root of 1230552469 is about 1071.6016625048.

The spelling of 1230552469 in words is "one billion, two hundred thirty million, five hundred fifty-two thousand, four hundred sixty-nine".