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1230606625 = 5317737933
BaseRepresentation
bin100100101011001…
…1001000100100001
310011202121021221011
41021112121010201
510010013403000
6322040100521
742331661263
oct11126310441
93152537834
101230606625
11581710a76
122a4164741
13167c4c601
14b9619b33
15730842ba
hex49599121

1230606625 has 32 divisors (see below), whose sum is σ = 1648621728. Its totient is φ = 913766400.

The previous prime is 1230606617. The next prime is 1230606653. The reversal of 1230606625 is 5266060321.

It can be written as a sum of positive squares in 16 ways, for example, as 788093329 + 442513296 = 28073^2 + 21036^2 .

It is not a de Polignac number, because 1230606625 - 23 = 1230606617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151159 + ... + 159091.

It is an arithmetic number, because the mean of its divisors is an integer number (51519429).

Almost surely, 21230606625 is an apocalyptic number.

It is an amenable number.

1230606625 is a deficient number, since it is larger than the sum of its proper divisors (418015103).

1230606625 is an equidigital number, since it uses as much as digits as its factorization.

1230606625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038 (or 8028 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1230606625 is about 35080.0032069554. The cubic root of 1230606625 is about 1071.6173824923.

Adding to 1230606625 its reverse (5266060321), we get a palindrome (6496666946).

The spelling of 1230606625 in words is "one billion, two hundred thirty million, six hundred six thousand, six hundred twenty-five".

Divisors: 1 5 17 25 73 85 125 365 425 1241 1825 2125 6205 7933 9125 31025 39665 134861 155125 198325 579109 674305 991625 2895545 3371525 9844853 14477725 16857625 49224265 72388625 246121325 1230606625