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1425030623 = 2949138987
BaseRepresentation
bin101010011110000…
…0011110111011111
310200022110001111222
41110330003313133
510404301434443
6353223203555
750212363142
oct12474036737
93608401458
101425030623
11671435665
123392a65bb
131993038b3
14d738a059
158518b468
hex54f03ddf

1425030623 has 4 divisors (see below), whose sum is σ = 1474169640. Its totient is φ = 1375891608.

The previous prime is 1425030613. The next prime is 1425030631. The reversal of 1425030623 is 3260305241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3260305241 = 7573430517.

It is a cyclic number.

It is not a de Polignac number, because 1425030623 - 28 = 1425030367 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425030592 and 1425030601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425030613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24569465 + ... + 24569522.

It is an arithmetic number, because the mean of its divisors is an integer number (368542410).

Almost surely, 21425030623 is an apocalyptic number.

1425030623 is a deficient number, since it is larger than the sum of its proper divisors (49139017).

1425030623 is an equidigital number, since it uses as much as digits as its factorization.

1425030623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49139016.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1425030623 is about 37749.5777857183. The cubic root of 1425030623 is about 1125.3166181753.

Adding to 1425030623 its reverse (3260305241), we get a palindrome (4685335864).

The spelling of 1425030623 in words is "one billion, four hundred twenty-five million, thirty thousand, six hundred twenty-three".

Divisors: 1 29 49138987 1425030623