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120020031313 = 7132361992639
BaseRepresentation
bin110111111000111000…
…0000101011101010001
3102110210101212022021221
41233301300011131101
53431300112000223
6131045245445041
711446131301510
oct1576160053521
9373711768257
10120020031313
114699a1a6a26
121b316570781
13b4193abb10
145b47c7c677
1531c6b10b5d
hex1bf1c05751

120020031313 has 32 divisors (see below), whose sum is σ = 154390118400. Its totient is φ = 90684449856.

The previous prime is 120020031283. The next prime is 120020031319. The reversal of 120020031313 is 313130020021.

It is not a de Polignac number, because 120020031313 - 217 = 120019900241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120020031319) 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, 1249248 + ... + 1341886.

It is an arithmetic number, because the mean of its divisors is an integer number (4824691200).

Almost surely, 2120020031313 is an apocalyptic number.

120020031313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120020031313 is a deficient number, since it is larger than the sum of its proper divisors (34370087087).

120020031313 is a wasteful number, since it uses less digits than its factorization.

120020031313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93301.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 120020031313 its reverse (313130020021), we get a palindrome (433150051334).

The spelling of 120020031313 in words is "one hundred twenty billion, twenty million, thirty-one thousand, three hundred thirteen".

Divisors: 1 7 13 23 91 161 299 619 2093 4333 8047 14237 56329 92639 99659 185081 648473 1204307 1295567 2130697 8430149 14914879 27699061 57343541 193893427 401404787 745466033 1318901443 5218262231 9232310101 17145718759 120020031313