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30745026213 = 3117954121799
BaseRepresentation
bin11100101000100010…
…111101111010100101
32221100200012011012120
4130220202331322211
51000431211314323
622042444340153
72135614260636
oct345042757245
987320164176
1030745026213
1112047847280
125b60544659
132b8c83aa05
1416b938388d
15bee2425e3
hex7288bdea5

30745026213 has 32 divisors (see below), whose sum is σ = 45371904000. Its totient is φ = 18362635200.

The previous prime is 30745026079. The next prime is 30745026253. The reversal of 30745026213 is 31262054703.

It is not a de Polignac number, because 30745026213 - 210 = 30745025189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30745026253) 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 31 ways as a sum of consecutive naturals, for example, 1399488 + ... + 1421286.

It is an arithmetic number, because the mean of its divisors is an integer number (1417872000).

Almost surely, 230745026213 is an apocalyptic number.

30745026213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30745026213 is a deficient number, since it is larger than the sum of its proper divisors (14626877787).

30745026213 is a wasteful number, since it uses less digits than its factorization.

30745026213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22433.

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 30745026213 in words is "thirty billion, seven hundred forty-five million, twenty-six thousand, two hundred thirteen".

Divisors: 1 3 11 33 79 237 541 869 1623 2607 5951 17853 21799 42739 65397 128217 239789 470129 719367 1410387 1722121 5166363 11793259 18943331 35379777 56829993 129725849 389177547 931667461 2795002383 10248342071 30745026213