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30123265082 = 215061632541
BaseRepresentation
bin11100000011011111…
…001000110000111010
32212202100020102021112
4130003133020300322
5443143023440312
621501034040322
72114324346161
oct340337106072
985670212245
1030123265082
11118588859a9
125a082790a2
132ac0a93211
14165a9743d8
15bb4876d22
hex7037c8c3a

30123265082 has 4 divisors (see below), whose sum is σ = 45184897626. Its totient is φ = 15061632540.

The previous prime is 30123265031. The next prime is 30123265093. The reversal of 30123265082 is 28056232103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28056232103 = 61345768731.

It can be written as a sum of positive squares in only one way, i.e., 27082955761 + 3040309321 = 164569^2 + 55139^2 .

It is a super-2 number, since 2×301232650822 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7530816269 + ... + 7530816272.

Almost surely, 230123265082 is an apocalyptic number.

30123265082 is a deficient number, since it is larger than the sum of its proper divisors (15061632544).

30123265082 is a wasteful number, since it uses less digits than its factorization.

30123265082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15061632543.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 30123265082 its reverse (28056232103), we get a palindrome (58179497185).

The spelling of 30123265082 in words is "thirty billion, one hundred twenty-three million, two hundred sixty-five thousand, eighty-two".

Divisors: 1 2 15061632541 30123265082