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13421222330 = 252953873209
BaseRepresentation
bin11000111111111011…
…11001100110111010
31021122100101201212112
430133331321212322
5204441313103310
610055435212322
7653406336035
oct143775714672
937570351775
1013421222330
115767a25a8a
1227268a70a2
13135b733b99
1491469601c
15538408705
hex31ff799ba

13421222330 has 32 divisors (see below), whose sum is σ = 25462803600. Its totient is φ = 5085563392.

The previous prime is 13421222323. The next prime is 13421222333. The reversal of 13421222330 is 3322212431.

It can be written as a sum of positive squares in 8 ways, for example, as 7908011329 + 5513211001 = 88927^2 + 74251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13421222296 and 13421222305.

It is not an unprimeable number, because it can be changed into a prime (13421222333) 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, 421235 + ... + 451974.

Almost surely, 213421222330 is an apocalyptic number.

13421222330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13421222330 is a deficient number, since it is larger than the sum of its proper divisors (12041581270).

13421222330 is a wasteful number, since it uses less digits than its factorization.

13421222330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873298.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13421222330 its reverse (3322212431), we get a palindrome (16743434761).

The spelling of 13421222330 in words is "thirteen billion, four hundred twenty-one million, two hundred twenty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 29 53 58 106 145 265 290 530 1537 3074 7685 15370 873209 1746418 4366045 8732090 25323061 46280077 50646122 92560154 126615305 231400385 253230610 462800770 1342122233 2684244466 6710611165 13421222330