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1230918053 is a prime number
BaseRepresentation
bin100100101011110…
…0101000110100101
310011210012010010112
41021113211012211
510010103334203
6322050502405
742334426241
oct11127450645
93153163115
101230918053
11581903a52
122a4294a05
1316802b2a1
14b969b421
15730e66d8
hex495e51a5

1230918053 has 2 divisors, whose sum is σ = 1230918054. Its totient is φ = 1230918052.

The previous prime is 1230918041. The next prime is 1230918061. The reversal of 1230918053 is 3508190321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 637411009 + 593507044 = 25247^2 + 24362^2 .

It is an emirp because it is prime and its reverse (3508190321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230918053 - 210 = 1230917029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230911053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615459026 + 615459027.

It is an arithmetic number, because the mean of its divisors is an integer number (615459027).

Almost surely, 21230918053 is an apocalyptic number.

It is an amenable number.

1230918053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230918053 is an equidigital number, since it uses as much as digits as its factorization.

1230918053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1230918053 is about 35084.4417512948. The cubic root of 1230918053 is about 1071.7077724682.

The spelling of 1230918053 in words is "one billion, two hundred thirty million, nine hundred eighteen thousand, fifty-three".