Search a number
-
+
120302202230021 = 747375931972679
BaseRepresentation
bin11011010110101000001010…
…000001111001010100000101
3120202221210000022120221100102
4123112220022001321110011
5111232012402232330041
61103510022503253445
734224355501564310
oct3326501201712405
9522853008527312
10120302202230021
1135371971983519
12115ab45814a285
1352185ab58ac66
14219c92c86d977
15dd950a32209b
hex6d6a0a079505

120302202230021 has 16 divisors (see below), whose sum is σ = 140414030499840. Its totient is φ = 100921839989040.

The previous prime is 120302202229969. The next prime is 120302202230033. The reversal of 120302202230021 is 120032202203021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-120302202230021 is a prime.

It is a super-2 number, since 2×1203022022300212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120302202229975 and 120302202230002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120302202238021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123194960 + ... + 124167638.

It is an arithmetic number, because the mean of its divisors is an integer number (8775876906240).

Almost surely, 2120302202230021 is an apocalyptic number.

It is an amenable number.

120302202230021 is a deficient number, since it is larger than the sum of its proper divisors (20111828269819).

120302202230021 is an equidigital number, since it uses as much as digits as its factorization.

120302202230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348664.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 120302202230021 its reverse (120032202203021), we get a palindrome (240334404433042).

The spelling of 120302202230021 in words is "one hundred twenty trillion, three hundred two billion, two hundred two million, two hundred thirty thousand, twenty-one".

Divisors: 1 7 47 329 375931 972679 2631517 6808753 17668757 45715913 123681299 320011391 365660189149 2559621324043 17186028890003 120302202230021