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30231311201999 = 173220355221949
BaseRepresentation
bin1101101111110110001101…
…00100001011011011001111
310222001002022001112022100122
412313323012210023123033
512430302211131430444
6144144023405015155
76240066034226345
oct667730644133317
9128032261468318
1030231311201999
1196a60330547a6
123483044b544bb
1313b3a5368118b
147672bbab1995
153765bc02b4ee
hex1b7ec690b6cf

30231311201999 has 8 divisors (see below), whose sum is σ = 32010618200400. Its totient is φ = 28452114711936.

The previous prime is 30231311201983. The next prime is 30231311202011. The reversal of 30231311201999 is 99910211313203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30231311201999 - 24 = 30231311201983 is a prime.

It is a super-2 number, since 2×302313112019992 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231311201099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27063524 + ... + 28158425.

It is an arithmetic number, because the mean of its divisors is an integer number (4001327275050).

Almost surely, 230231311201999 is an apocalyptic number.

30231311201999 is a deficient number, since it is larger than the sum of its proper divisors (1779306998401).

30231311201999 is a wasteful number, since it uses less digits than its factorization.

30231311201999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55254169.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 30231311201999 in words is "thirty trillion, two hundred thirty-one billion, three hundred eleven million, two hundred one thousand, nine hundred ninety-nine".

Divisors: 1 17 32203 547451 55221949 938773133 1778312423647 30231311201999