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30302213023 = 1719208944909
BaseRepresentation
bin11100001110001001…
…110001001110011111
32220012210221220201001
4130032021301032133
5444024331304043
621530505331131
72121626363245
oct341611611637
986183856631
1030302213023
111193a89a165
125a58196aa7
132b1bb89284
141676636795
15bc542374d
hex70e27139f

30302213023 has 16 divisors (see below), whose sum is σ = 33790284000. Its totient is φ = 27005156352.

The previous prime is 30302213009. The next prime is 30302213027. The reversal of 30302213023 is 32031220303.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30302213023 - 217 = 30302081951 is a prime.

It is a super-2 number, since 2×303022130232 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302213027) 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 15 ways as a sum of consecutive naturals, for example, 652293 + ... + 697201.

It is an arithmetic number, because the mean of its divisors is an integer number (2111892750).

Almost surely, 230302213023 is an apocalyptic number.

30302213023 is a deficient number, since it is larger than the sum of its proper divisors (3488070977).

30302213023 is a wasteful number, since it uses less digits than its factorization.

30302213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47034.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30302213023 its reverse (32031220303), we get a palindrome (62333433326).

The spelling of 30302213023 in words is "thirty billion, three hundred two million, two hundred thirteen thousand, twenty-three".

Divisors: 1 17 19 323 2089 35513 39691 44909 674747 763453 853271 14505607 93814901 1594853317 1782483119 30302213023