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13123323222 = 2315713931341
BaseRepresentation
bin11000011100011011…
…00000010101010110
31020212120211220010020
430032031200111112
5203334032320342
610010114210010
7643131256362
oct141615402526
936776756106
1013123323222
115624856a79
122662b83906
131311ac0419
148c6cac2a2
1551c1b20ec
hex30e360556

13123323222 has 16 divisors (see below), whose sum is σ = 26413824432. Its totient is φ = 4346578080.

The previous prime is 13123323211. The next prime is 13123323229. The reversal of 13123323222 is 22232332131.

It is a super-2 number, since 2×131233232222 (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13123323192 and 13123323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123323229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6964729 + ... + 6966612.

It is an arithmetic number, because the mean of its divisors is an integer number (1650864027).

Almost surely, 213123323222 is an apocalyptic number.

13123323222 is an abundant number, since it is smaller than the sum of its proper divisors (13290501210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123323222 is a wasteful number, since it uses less digits than its factorization.

13123323222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13931503.

The product of its digits is 2592, while the sum is 24.

Adding to 13123323222 its reverse (22232332131), we get a palindrome (35355655353).

The spelling of 13123323222 in words is "thirteen billion, one hundred twenty-three million, three hundred twenty-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 157 314 471 942 13931341 27862682 41794023 83588046 2187220537 4374441074 6561661611 13123323222