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30213112053 = 310071037351
BaseRepresentation
bin11100001000110101…
…111000000011110101
32212222121022010011010
4130020311320003311
5443334024041203
621514003502433
72116465133535
oct341065700365
985877263133
1030213112053
11118a45722a3
125a32387a19
132b065905c7
1416688814c5
15bbc6c3303
hex708d780f5

30213112053 has 4 divisors (see below), whose sum is σ = 40284149408. Its totient is φ = 20142074700.

The previous prime is 30213111983. The next prime is 30213112063. The reversal of 30213112053 is 35021131203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35021131203 = 311673710401.

It is not a de Polignac number, because 30213112053 - 29 = 30213111541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213112063) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 5035518673 + ... + 5035518678.

It is an arithmetic number, because the mean of its divisors is an integer number (10071037352).

Almost surely, 230213112053 is an apocalyptic number.

It is an amenable number.

30213112053 is a deficient number, since it is larger than the sum of its proper divisors (10071037355).

30213112053 is a wasteful number, since it uses less digits than its factorization.

30213112053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10071037354.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 30213112053 its reverse (35021131203), we get a palindrome (65234243256).

The spelling of 30213112053 in words is "thirty billion, two hundred thirteen million, one hundred twelve thousand, fifty-three".

Divisors: 1 3 10071037351 30213112053