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30213212111113 = 40973870934257
BaseRepresentation
bin1101101111010100011111…
…10001101000000100001001
310221222100120200220020012011
412313222033301220010021
512430003124300023423
6144131431422415521
76235555363416463
oct667521761500411
9127870520806164
1030213212111113
119699395641949
12347b6337315a1
1313b212aa67b45
1476648204d133
15375dad0ecb0d
hex1b7a8fc68109

30213212111113 has 4 divisors (see below), whose sum is σ = 30287083045780. Its totient is φ = 30139341176448.

The previous prime is 30213212111081. The next prime is 30213212111123. The reversal of 30213212111113 is 31111121231203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27030973553424 + 3182238557689 = 5199132^2 + 1783883^2 .

It is a cyclic number.

It is not a de Polignac number, because 30213212111113 - 25 = 30213212111081 is a prime.

It is a super-2 number, since 2×302132121111132 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30213212111123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36935466720 + ... + 36935467537.

It is an arithmetic number, because the mean of its divisors is an integer number (7571770761445).

Almost surely, 230213212111113 is an apocalyptic number.

It is an amenable number.

30213212111113 is a deficient number, since it is larger than the sum of its proper divisors (73870934667).

30213212111113 is an equidigital number, since it uses as much as digits as its factorization.

30213212111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73870934666.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 30213212111113 its reverse (31111121231203), we get a palindrome (61324333342316).

The spelling of 30213212111113 in words is "thirty trillion, two hundred thirteen billion, two hundred twelve million, one hundred eleven thousand, one hundred thirteen".

Divisors: 1 409 73870934257 30213212111113