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721213102013033 = 72318702723951539
BaseRepresentation
bin1010001111111100001000001…
…0110000001011101001101001
310111120121022002010010112200002
42203333002002300023221221
51224012323413103404113
611033520420343352345
7304624632666433160
oct24377020260135151
93446538063115602
10721213102013033
11199889839110593
1268a7bb207526b5
1324c57146a8cb16
14ca14c869483d7
15585a61b8b1c58
hex28ff082c0ba69

721213102013033 has 16 divisors (see below), whose sum is σ = 860084855639040. Its totient is φ = 591301965670416.

The previous prime is 721213102013029. The next prime is 721213102013051. The reversal of 721213102013033 is 330310201312127.

It is not a de Polignac number, because 721213102013033 - 22 = 721213102013029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 721213102012987 and 721213102013005.

It is not an unprimeable number, because it can be changed into a prime (721213102013333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18135578 + ... + 42087116.

It is an arithmetic number, because the mean of its divisors is an integer number (53755303477440).

Almost surely, 2721213102013033 is an apocalyptic number.

It is an amenable number.

721213102013033 is a deficient number, since it is larger than the sum of its proper divisors (138871753626007).

721213102013033 is a wasteful number, since it uses less digits than its factorization.

721213102013033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24138596.

The product of its (nonzero) digits is 4536, while the sum is 29.

The spelling of 721213102013033 in words is "seven hundred twenty-one trillion, two hundred thirteen billion, one hundred two million, thirteen thousand, thirty-three".

Divisors: 1 7 23 161 187027 1309189 4301621 23951539 30111347 167660773 550885397 3856197779 4479584484553 31357091391871 103030443144719 721213102013033